VulnSocial

CVE-2026-20023General(cisco / adaptive_security_appliance_software)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to memory corruption when parsing OSPF protocol packets. An attacker could exploit this vulnerability by sending crafted OSPF packets to an affected device. A successful exploit could allow the attacker to cause memory corruption causing the affected device to reboot, resulting in a DoS condition.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • adaptive_security_appliance_software
  • secure_firewall_threat_defense

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-03-04); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
cisco
Products
adaptive_security_appliance_softwaresecure_firewall_threat_defense

234 versions affected across 2 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-03-04: 1Mentions · 2026-03-05: 1Technical Details · 2026-03-05: 103-0403-05
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-03-041
General1
2026-03-051
Disclosure1
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-20023 Cisco ASA and FTD OSPF Packet Parsing Memory Corruption Vulnerability https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-20023

    Post summary

    The entry announces a new memory-corruption vulnerability (CVE-2026-20023) affecting Cisco ASA/FTD OSPF packet parsing without indicating availability of POC, exploit tools, active attacks, or patches.

    0000052
    4.0K followersView on X
  • CVE@CVEnew
    General

    CVE-2026-20023 A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could… https://www.cve.org/CVERecord?id=CVE-2026-20023

    Post summary

    The post only references the CVE and offers a link to the CVE record, providing no further technical or operational details.

    0000083
    56.6K followersView on X
CPE platform detail234 entries

234 of 234 entries

PartVendorProductVersionTarget SWTarget HW
OSciscoadaptive_security_appliance_software9.12.1--
OSciscoadaptive_security_appliance_software9.12.1.2--
OSciscoadaptive_security_appliance_software9.12.1.3--
OSciscoadaptive_security_appliance_software9.12.2--
OSciscoadaptive_security_appliance_software9.12.2.1--
OSciscoadaptive_security_appliance_software9.12.2.4--
OSciscoadaptive_security_appliance_software9.12.2.5--
OSciscoadaptive_security_appliance_software9.12.2.9--
OSciscoadaptive_security_appliance_software9.12.3--
OSciscoadaptive_security_appliance_software9.12.3.12--
OSciscoadaptive_security_appliance_software9.12.3.2--
OSciscoadaptive_security_appliance_software9.12.3.7--
OSciscoadaptive_security_appliance_software9.12.3.9--
OSciscoadaptive_security_appliance_software9.12.4--
OSciscoadaptive_security_appliance_software9.12.4.10--
OSciscoadaptive_security_appliance_software9.12.4.13--
OSciscoadaptive_security_appliance_software9.12.4.18--
OSciscoadaptive_security_appliance_software9.12.4.2--
OSciscoadaptive_security_appliance_software9.12.4.24--
OSciscoadaptive_security_appliance_software9.12.4.26--
OSciscoadaptive_security_appliance_software9.12.4.29--
OSciscoadaptive_security_appliance_software9.12.4.30--
OSciscoadaptive_security_appliance_software9.12.4.35--
OSciscoadaptive_security_appliance_software9.12.4.37--
OSciscoadaptive_security_appliance_software9.12.4.38--
OSciscoadaptive_security_appliance_software9.12.4.39--
OSciscoadaptive_security_appliance_software9.12.4.4--
OSciscoadaptive_security_appliance_software9.12.4.40--
OSciscoadaptive_security_appliance_software9.12.4.41--
OSciscoadaptive_security_appliance_software9.12.4.47--
OSciscoadaptive_security_appliance_software9.12.4.48--
OSciscoadaptive_security_appliance_software9.12.4.50--
OSciscoadaptive_security_appliance_software9.12.4.52--
OSciscoadaptive_security_appliance_software9.12.4.54--
OSciscoadaptive_security_appliance_software9.12.4.55--
OSciscoadaptive_security_appliance_software9.12.4.56--
OSciscoadaptive_security_appliance_software9.12.4.58--
OSciscoadaptive_security_appliance_software9.12.4.62--
OSciscoadaptive_security_appliance_software9.12.4.65--
OSciscoadaptive_security_appliance_software9.12.4.67--
OSciscoadaptive_security_appliance_software9.12.4.7--
OSciscoadaptive_security_appliance_software9.12.4.8--
OSciscoadaptive_security_appliance_software9.16.1--
OSciscoadaptive_security_appliance_software9.16.1.28--
OSciscoadaptive_security_appliance_software9.16.2--
OSciscoadaptive_security_appliance_software9.16.2.11--
OSciscoadaptive_security_appliance_software9.16.2.13--
OSciscoadaptive_security_appliance_software9.16.2.14--
OSciscoadaptive_security_appliance_software9.16.2.3--
OSciscoadaptive_security_appliance_software9.16.2.7--
OSciscoadaptive_security_appliance_software9.16.3--
OSciscoadaptive_security_appliance_software9.16.3.14--
OSciscoadaptive_security_appliance_software9.16.3.15--
OSciscoadaptive_security_appliance_software9.16.3.19--
OSciscoadaptive_security_appliance_software9.16.3.23--
OSciscoadaptive_security_appliance_software9.16.3.3--
OSciscoadaptive_security_appliance_software9.16.4--
OSciscoadaptive_security_appliance_software9.16.4.14--
OSciscoadaptive_security_appliance_software9.16.4.19--
OSciscoadaptive_security_appliance_software9.16.4.27--
OSciscoadaptive_security_appliance_software9.16.4.38--
OSciscoadaptive_security_appliance_software9.16.4.39--
OSciscoadaptive_security_appliance_software9.16.4.42--
OSciscoadaptive_security_appliance_software9.16.4.48--
OSciscoadaptive_security_appliance_software9.16.4.55--
OSciscoadaptive_security_appliance_software9.16.4.57--
OSciscoadaptive_security_appliance_software9.16.4.61--
OSciscoadaptive_security_appliance_software9.16.4.62--
OSciscoadaptive_security_appliance_software9.16.4.67--
OSciscoadaptive_security_appliance_software9.16.4.70--
OSciscoadaptive_security_appliance_software9.16.4.71--
OSciscoadaptive_security_appliance_software9.16.4.76--
OSciscoadaptive_security_appliance_software9.16.4.82--
OSciscoadaptive_security_appliance_software9.16.4.84--
OSciscoadaptive_security_appliance_software9.16.4.85--
OSciscoadaptive_security_appliance_software9.16.4.9--
OSciscoadaptive_security_appliance_software9.17.1--
OSciscoadaptive_security_appliance_software9.17.1.10--
OSciscoadaptive_security_appliance_software9.17.1.11--
OSciscoadaptive_security_appliance_software9.17.1.13--
OSciscoadaptive_security_appliance_software9.17.1.15--
OSciscoadaptive_security_appliance_software9.17.1.20--
OSciscoadaptive_security_appliance_software9.17.1.30--
OSciscoadaptive_security_appliance_software9.17.1.33--
OSciscoadaptive_security_appliance_software9.17.1.39--
OSciscoadaptive_security_appliance_software9.17.1.45--
OSciscoadaptive_security_appliance_software9.17.1.46--
OSciscoadaptive_security_appliance_software9.17.1.7--
OSciscoadaptive_security_appliance_software9.17.1.9--
OSciscoadaptive_security_appliance_software9.18.1--
OSciscoadaptive_security_appliance_software9.18.1.3--
OSciscoadaptive_security_appliance_software9.18.2--
OSciscoadaptive_security_appliance_software9.18.2.5--
OSciscoadaptive_security_appliance_software9.18.2.7--
OSciscoadaptive_security_appliance_software9.18.2.8--
OSciscoadaptive_security_appliance_software9.18.3--
OSciscoadaptive_security_appliance_software9.18.3.39--
OSciscoadaptive_security_appliance_software9.18.3.46--
OSciscoadaptive_security_appliance_software9.18.3.53--
OSciscoadaptive_security_appliance_software9.18.3.55--
OSciscoadaptive_security_appliance_software9.18.3.56--
OSciscoadaptive_security_appliance_software9.18.4--
OSciscoadaptive_security_appliance_software9.18.4.22--
OSciscoadaptive_security_appliance_software9.18.4.24--
OSciscoadaptive_security_appliance_software9.18.4.29--
OSciscoadaptive_security_appliance_software9.18.4.34--
OSciscoadaptive_security_appliance_software9.18.4.40--
OSciscoadaptive_security_appliance_software9.18.4.47--
OSciscoadaptive_security_appliance_software9.18.4.5--
OSciscoadaptive_security_appliance_software9.18.4.50--
OSciscoadaptive_security_appliance_software9.18.4.52--
OSciscoadaptive_security_appliance_software9.18.4.53--
OSciscoadaptive_security_appliance_software9.18.4.57--
OSciscoadaptive_security_appliance_software9.18.4.66--
OSciscoadaptive_security_appliance_software9.18.4.67--
OSciscoadaptive_security_appliance_software9.18.4.68--
OSciscoadaptive_security_appliance_software9.18.4.8--
OSciscoadaptive_security_appliance_software9.19.1--
OSciscoadaptive_security_appliance_software9.19.1.12--
OSciscoadaptive_security_appliance_software9.19.1.18--
OSciscoadaptive_security_appliance_software9.19.1.22--
OSciscoadaptive_security_appliance_software9.19.1.24--
OSciscoadaptive_security_appliance_software9.19.1.27--
OSciscoadaptive_security_appliance_software9.19.1.28--
OSciscoadaptive_security_appliance_software9.19.1.31--
OSciscoadaptive_security_appliance_software9.19.1.37--
OSciscoadaptive_security_appliance_software9.19.1.38--
OSciscoadaptive_security_appliance_software9.19.1.42--
OSciscoadaptive_security_appliance_software9.19.1.5--
OSciscoadaptive_security_appliance_software9.19.1.9--
OSciscoadaptive_security_appliance_software9.20.1--
OSciscoadaptive_security_appliance_software9.20.1.5--
OSciscoadaptive_security_appliance_software9.20.2--
OSciscoadaptive_security_appliance_software9.20.2.10--
OSciscoadaptive_security_appliance_software9.20.2.21--
OSciscoadaptive_security_appliance_software9.20.2.22--
OSciscoadaptive_security_appliance_software9.20.3--
OSciscoadaptive_security_appliance_software9.20.3.10--
OSciscoadaptive_security_appliance_software9.20.3.13--
OSciscoadaptive_security_appliance_software9.20.3.16--
OSciscoadaptive_security_appliance_software9.20.3.4--
OSciscoadaptive_security_appliance_software9.20.3.7--
OSciscoadaptive_security_appliance_software9.20.3.9--
OSciscoadaptive_security_appliance_software9.20.4--
OSciscoadaptive_security_appliance_software9.20.4.10--
OSciscoadaptive_security_appliance_software9.20.4.14--
OSciscoadaptive_security_appliance_software9.20.4.7--
OSciscoadaptive_security_appliance_software9.22.1.1--
OSciscoadaptive_security_appliance_software9.22.1.2--
OSciscoadaptive_security_appliance_software9.22.1.3--
OSciscoadaptive_security_appliance_software9.22.1.6--
OSciscoadaptive_security_appliance_software9.22.2.13--
OSciscoadaptive_security_appliance_software9.22.2.14--
OSciscoadaptive_security_appliance_software9.22.2.9--
OSciscoadaptive_security_appliance_software9.23.1--
OSciscoadaptive_security_appliance_software9.23.1.13--
OSciscoadaptive_security_appliance_software9.23.1.19--
OSciscoadaptive_security_appliance_software9.23.1.22--
OSciscoadaptive_security_appliance_software9.23.1.7--
Appciscosecure_firewall_threat_defense6.4.0--
Appciscosecure_firewall_threat_defense6.4.0.1--
Appciscosecure_firewall_threat_defense6.4.0.10--
Appciscosecure_firewall_threat_defense6.4.0.11--
Appciscosecure_firewall_threat_defense6.4.0.12--
Appciscosecure_firewall_threat_defense6.4.0.13--
Appciscosecure_firewall_threat_defense6.4.0.14--
Appciscosecure_firewall_threat_defense6.4.0.15--
Appciscosecure_firewall_threat_defense6.4.0.16--
Appciscosecure_firewall_threat_defense6.4.0.17--
Appciscosecure_firewall_threat_defense6.4.0.18--
Appciscosecure_firewall_threat_defense6.4.0.2--
Appciscosecure_firewall_threat_defense6.4.0.3--
Appciscosecure_firewall_threat_defense6.4.0.4--
Appciscosecure_firewall_threat_defense6.4.0.5--
Appciscosecure_firewall_threat_defense6.4.0.6--
Appciscosecure_firewall_threat_defense6.4.0.7--
Appciscosecure_firewall_threat_defense6.4.0.8--
Appciscosecure_firewall_threat_defense6.4.0.9--
Appciscosecure_firewall_threat_defense7.0.0--
Appciscosecure_firewall_threat_defense7.0.0.1--
Appciscosecure_firewall_threat_defense7.0.1--
Appciscosecure_firewall_threat_defense7.0.1.1--
Appciscosecure_firewall_threat_defense7.0.2--
Appciscosecure_firewall_threat_defense7.0.2.1--
Appciscosecure_firewall_threat_defense7.0.3--
Appciscosecure_firewall_threat_defense7.0.4--
Appciscosecure_firewall_threat_defense7.0.5--
Appciscosecure_firewall_threat_defense7.0.6--
Appciscosecure_firewall_threat_defense7.0.6.1--
Appciscosecure_firewall_threat_defense7.0.6.2--
Appciscosecure_firewall_threat_defense7.0.6.3--
Appciscosecure_firewall_threat_defense7.0.7--
Appciscosecure_firewall_threat_defense7.0.8--
Appciscosecure_firewall_threat_defense7.0.8.1--
Appciscosecure_firewall_threat_defense7.1.0--
Appciscosecure_firewall_threat_defense7.1.0.1--
Appciscosecure_firewall_threat_defense7.1.0.2--
Appciscosecure_firewall_threat_defense7.1.0.3--
Appciscosecure_firewall_threat_defense7.2.0--
Appciscosecure_firewall_threat_defense7.2.0.1--
Appciscosecure_firewall_threat_defense7.2.1--
Appciscosecure_firewall_threat_defense7.2.10--
Appciscosecure_firewall_threat_defense7.2.10.2--
Appciscosecure_firewall_threat_defense7.2.2--
Appciscosecure_firewall_threat_defense7.2.3--
Appciscosecure_firewall_threat_defense7.2.4--
Appciscosecure_firewall_threat_defense7.2.4.1--
Appciscosecure_firewall_threat_defense7.2.5--
Appciscosecure_firewall_threat_defense7.2.5.1--
Appciscosecure_firewall_threat_defense7.2.5.2--
Appciscosecure_firewall_threat_defense7.2.6--
Appciscosecure_firewall_threat_defense7.2.7--
Appciscosecure_firewall_threat_defense7.2.8--
Appciscosecure_firewall_threat_defense7.2.8.1--
Appciscosecure_firewall_threat_defense7.2.9--
Appciscosecure_firewall_threat_defense7.3.0--
Appciscosecure_firewall_threat_defense7.3.1--
Appciscosecure_firewall_threat_defense7.3.1.1--
Appciscosecure_firewall_threat_defense7.3.1.2--
Appciscosecure_firewall_threat_defense7.4.0--
Appciscosecure_firewall_threat_defense7.4.1--
Appciscosecure_firewall_threat_defense7.4.1.1--
Appciscosecure_firewall_threat_defense7.4.2--
Appciscosecure_firewall_threat_defense7.4.2.1--
Appciscosecure_firewall_threat_defense7.4.2.2--
Appciscosecure_firewall_threat_defense7.4.2.3--
Appciscosecure_firewall_threat_defense7.4.2.4--
Appciscosecure_firewall_threat_defense7.4.3--
Appciscosecure_firewall_threat_defense7.6.0--
Appciscosecure_firewall_threat_defense7.6.1--
Appciscosecure_firewall_threat_defense7.6.2--
Appciscosecure_firewall_threat_defense7.6.2.1--
Appciscosecure_firewall_threat_defense7.7.0--
Appciscosecure_firewall_threat_defense7.7.10.1--

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