VulnSocial

CVE-2026-20020General(cisco / adaptive_security_appliance_software)

LOWCVSS 5.7 · 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 ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. If OSPF authentication is enabled, the attacker must know the secret key to exploit this vulnerability. This vulnerability is due to insufficient input validation when processing OSPF update packets. An attacker could exploit this vulnerability by sending crafted OSPF update packets. A successful exploit could allow the attacker to create a buffer overflow, causing the affected device to reload, resulting in a DoS condition.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-20

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: 2 classified signals
  • 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

221 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 classification1 categories
General
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-20020 OSPF Packet Processing Vulnerability in Cisco Secure Firewall and FTD Software https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-20020

    Post summary

    The text lists a newly disclosed OSPF packet processing vulnerability (CVE‑2026‑20020) in Cisco Secure Firewall and FTD Software, without providing PoC, exploit, patch, or active exploitation details.

    0000067
    4.0K followersView on X
  • CVE@CVEnew
    General

    CVE-2026-20020 A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an… https://www.cve.org/CVERecord?id=CVE-2026-20020

    Post summary

    The post merely references CVE‑2026‑20020 with an incomplete, generic description, offering no details on PoC, exploitation, mitigation, or active use.

    0000083
    56.6K followersView on X
CPE platform detail221 entries

221 of 221 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_software9.18.4.8--
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_software9.20.3.20--
OSciscoadaptive_security_appliance_software9.20.3.4--
OSciscoadaptive_security_appliance_software9.20.3.7--
OSciscoadaptive_security_appliance_software9.20.3.9--
OSciscoadaptive_security_appliance_software9.22.1.1--
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--
OSciscoadaptive_security_appliance_software9.23.1--
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_defense7.6.0--
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--

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