VulnSocial

CVE-2026-20124Disclosure(cisco / ios_xe)

LOWCVSS 7.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch cisco ios_xe systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper error handling when parsing SNMP requests. This vulnerability affects all versions of SNMP — Versions 1, 2c, and 3. An attacker could exploit this vulnerability by sending a malformed SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly. The attacker must have the SNMPv1 or v2c read-only or read-write community string or valid SNMPv3 user credentials on the affected device.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-772

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

  • ios_xe

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-08-05); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
cisco
Products
ios_xe

277 versions affected across 1 product

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-08-05: 1Mentions · 2026-08-06: 1Patch / Workaround · 2026-08-06: 1Technical Details · 2026-08-05: 108-0508-06
Signal classification1 categories
Disclosure
2100.0%
Referenced assets3 URLs
Full discourse2 posts
  • SecureShield@SecureShield_
    Disclosure

    一次情報(NVD): https://nvd.nist.gov/vuln/detail/CVE-2026-20124 参照元(ベンダー等): https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-snmp-dos-ZAqNm4MD

    Post summary

    The message references the NVD entry for CVE‑2026‑20124 and a Cisco security advisory, indicating the vulnerability has been disclosed and patched.

    0000061
    25 followersView on X
  • Kaitan ID Security@KaitanSecurity
    Disclosure

    ⚠️ HIGH — CVE-2026-20124 Cisco IOS XE Software SNMP Denial of Service Vulnerability CVSS 7.7 Full analysis → https://sec.kaitan.id/cves/CVE-2026-20124 #Cisco #CyberSecurity #InfoSec

    Post summary

    The tweet announces a new CVE‑2026‑20124 for Cisco IOS XE SNMP, providing the vulnerability type and CVSS score, and links to a detailed analysis, but it does not disclose PoC, exploit code, or patch information.

    0000090
    88 followersView on X
CPE platform detail277 entries

277 of 277 entries

PartVendorProductVersionTarget SWTarget HW
OSciscoios_xe16.10.1--
OSciscoios_xe16.10.1a--
OSciscoios_xe16.10.1b--
OSciscoios_xe16.10.1c--
OSciscoios_xe16.10.1d--
OSciscoios_xe16.10.1e--
OSciscoios_xe16.10.1f--
OSciscoios_xe16.10.1g--
OSciscoios_xe16.10.1s--
OSciscoios_xe16.10.2--
OSciscoios_xe16.10.3--
OSciscoios_xe16.11.1--
OSciscoios_xe16.11.1a--
OSciscoios_xe16.11.1b--
OSciscoios_xe16.11.1c--
OSciscoios_xe16.11.1s--
OSciscoios_xe16.11.2--
OSciscoios_xe16.12.1--
OSciscoios_xe16.12.10--
OSciscoios_xe16.12.10a--
OSciscoios_xe16.12.11--
OSciscoios_xe16.12.12--
OSciscoios_xe16.12.13--
OSciscoios_xe16.12.14--
OSciscoios_xe16.12.15--
OSciscoios_xe16.12.1a--
OSciscoios_xe16.12.1c--
OSciscoios_xe16.12.1s--
OSciscoios_xe16.12.1t--
OSciscoios_xe16.12.1w--
OSciscoios_xe16.12.1x--
OSciscoios_xe16.12.1y--
OSciscoios_xe16.12.1z--
OSciscoios_xe16.12.1z1--
OSciscoios_xe16.12.1z2--
OSciscoios_xe16.12.2--
OSciscoios_xe16.12.2a--
OSciscoios_xe16.12.2s--
OSciscoios_xe16.12.2t--
OSciscoios_xe16.12.3--
OSciscoios_xe16.12.3a--
OSciscoios_xe16.12.3s--
OSciscoios_xe16.12.4--
OSciscoios_xe16.12.4a--
OSciscoios_xe16.12.5--
OSciscoios_xe16.12.5a--
OSciscoios_xe16.12.5b--
OSciscoios_xe16.12.6--
OSciscoios_xe16.12.6a--
OSciscoios_xe16.12.7--
OSciscoios_xe16.12.8--
OSciscoios_xe16.12.9--
OSciscoios_xe16.6.10--
OSciscoios_xe16.6.2--
OSciscoios_xe16.6.3--
OSciscoios_xe16.6.4--
OSciscoios_xe16.6.4a--
OSciscoios_xe16.6.4s--
OSciscoios_xe16.6.5--
OSciscoios_xe16.6.5a--
OSciscoios_xe16.6.5b--
OSciscoios_xe16.6.6--
OSciscoios_xe16.6.7--
OSciscoios_xe16.6.7a--
OSciscoios_xe16.6.8--
OSciscoios_xe16.6.9--
OSciscoios_xe16.7.1--
OSciscoios_xe16.7.1a--
OSciscoios_xe16.7.1b--
OSciscoios_xe16.7.2--
OSciscoios_xe16.7.3--
OSciscoios_xe16.7.4--
OSciscoios_xe16.8.1--
OSciscoios_xe16.8.1a--
OSciscoios_xe16.8.1b--
OSciscoios_xe16.8.1c--
OSciscoios_xe16.8.1d--
OSciscoios_xe16.8.1e--
OSciscoios_xe16.8.1s--
OSciscoios_xe16.8.2--
OSciscoios_xe16.8.3--
OSciscoios_xe16.9.1--
OSciscoios_xe16.9.1a--
OSciscoios_xe16.9.1b--
OSciscoios_xe16.9.1c--
OSciscoios_xe16.9.1d--
OSciscoios_xe16.9.1s--
OSciscoios_xe16.9.2--
OSciscoios_xe16.9.2a--
OSciscoios_xe16.9.2s--
OSciscoios_xe16.9.3--
OSciscoios_xe16.9.3a--
OSciscoios_xe16.9.3h--
OSciscoios_xe16.9.3s--
OSciscoios_xe16.9.4--
OSciscoios_xe16.9.4c--
OSciscoios_xe16.9.5--
OSciscoios_xe16.9.5f--
OSciscoios_xe16.9.6--
OSciscoios_xe16.9.7--
OSciscoios_xe16.9.8--
OSciscoios_xe16.9.8a--
OSciscoios_xe16.9.8b--
OSciscoios_xe17.1.1--
OSciscoios_xe17.1.1a--
OSciscoios_xe17.1.1s--
OSciscoios_xe17.1.1t--
OSciscoios_xe17.1.2--
OSciscoios_xe17.1.3--
OSciscoios_xe17.10.1--
OSciscoios_xe17.10.1a--
OSciscoios_xe17.10.1b--
OSciscoios_xe17.11.1--
OSciscoios_xe17.11.1a--
OSciscoios_xe17.12.1--
OSciscoios_xe17.12.1a--
OSciscoios_xe17.12.1w--
OSciscoios_xe17.12.1x--
OSciscoios_xe17.12.1y--
OSciscoios_xe17.12.1z--
OSciscoios_xe17.12.1z1--
OSciscoios_xe17.12.1z2--
OSciscoios_xe17.12.1z3--
OSciscoios_xe17.12.1z4--
OSciscoios_xe17.12.1z5--
OSciscoios_xe17.12.1z6--
OSciscoios_xe17.12.2--
OSciscoios_xe17.12.2a--
OSciscoios_xe17.12.3--
OSciscoios_xe17.12.3a--
OSciscoios_xe17.12.4--
OSciscoios_xe17.12.4a--
OSciscoios_xe17.12.4b--
OSciscoios_xe17.12.5--
OSciscoios_xe17.12.5a--
OSciscoios_xe17.12.5b--
OSciscoios_xe17.12.5c--
OSciscoios_xe17.12.5d--
OSciscoios_xe17.12.6--
OSciscoios_xe17.12.6a--
OSciscoios_xe17.12.6b--
OSciscoios_xe17.13.1--
OSciscoios_xe17.13.1a--
OSciscoios_xe17.14.1--
OSciscoios_xe17.14.1a--
OSciscoios_xe17.15.1--
OSciscoios_xe17.15.1a--
OSciscoios_xe17.15.1b--
OSciscoios_xe17.15.1w--
OSciscoios_xe17.15.1x--
OSciscoios_xe17.15.1y--
OSciscoios_xe17.15.2--
OSciscoios_xe17.15.2a--
OSciscoios_xe17.15.2b--
OSciscoios_xe17.15.2c--
OSciscoios_xe17.15.3--
OSciscoios_xe17.15.3a--
OSciscoios_xe17.15.3b--
OSciscoios_xe17.15.4--
OSciscoios_xe17.15.4a--
OSciscoios_xe17.15.4b--
OSciscoios_xe17.15.4c--
OSciscoios_xe17.15.4d--
OSciscoios_xe17.15.4s1--
OSciscoios_xe17.16.1--
OSciscoios_xe17.16.1a--
OSciscoios_xe17.17.1--
OSciscoios_xe17.18.1--
OSciscoios_xe17.18.1a--
OSciscoios_xe17.18.1w--
OSciscoios_xe17.18.1x--
OSciscoios_xe17.18.1y--
OSciscoios_xe17.18.2--
OSciscoios_xe17.2.1--
OSciscoios_xe17.2.1a--
OSciscoios_xe17.2.1r--
OSciscoios_xe17.2.1v--
OSciscoios_xe17.2.2--
OSciscoios_xe17.2.3--
OSciscoios_xe17.3.1--
OSciscoios_xe17.3.1a--
OSciscoios_xe17.3.1w--
OSciscoios_xe17.3.1x--
OSciscoios_xe17.3.1z--
OSciscoios_xe17.3.2--
OSciscoios_xe17.3.2a--
OSciscoios_xe17.3.3--
OSciscoios_xe17.3.3a--
OSciscoios_xe17.3.4--
OSciscoios_xe17.3.4a--
OSciscoios_xe17.3.4b--
OSciscoios_xe17.3.4c--
OSciscoios_xe17.3.5--
OSciscoios_xe17.3.5a--
OSciscoios_xe17.3.5b--
OSciscoios_xe17.3.6--
OSciscoios_xe17.3.7--
OSciscoios_xe17.3.8--
OSciscoios_xe17.3.8a--
OSciscoios_xe17.4.1--
OSciscoios_xe17.4.1a--
OSciscoios_xe17.4.1b--
OSciscoios_xe17.4.1c--
OSciscoios_xe17.4.2--
OSciscoios_xe17.4.2a--
OSciscoios_xe17.5.1--
OSciscoios_xe17.5.1a--
OSciscoios_xe17.6.1--
OSciscoios_xe17.6.1a--
OSciscoios_xe17.6.1x--
OSciscoios_xe17.6.1z--
OSciscoios_xe17.6.1z1--
OSciscoios_xe17.6.2--
OSciscoios_xe17.6.3--
OSciscoios_xe17.6.3a--
OSciscoios_xe17.6.4--
OSciscoios_xe17.6.5--
OSciscoios_xe17.6.5a--
OSciscoios_xe17.6.6--
OSciscoios_xe17.6.6a--
OSciscoios_xe17.6.7--
OSciscoios_xe17.6.8--
OSciscoios_xe17.6.8a--
OSciscoios_xe17.7.1--
OSciscoios_xe17.7.1a--
OSciscoios_xe17.7.1b--
OSciscoios_xe17.7.2--
OSciscoios_xe17.8.1--
OSciscoios_xe17.8.1a--
OSciscoios_xe17.9.1--
OSciscoios_xe17.9.1a--
OSciscoios_xe17.9.1w--
OSciscoios_xe17.9.1x--
OSciscoios_xe17.9.1x1--
OSciscoios_xe17.9.1y--
OSciscoios_xe17.9.1y1--
OSciscoios_xe17.9.2--
OSciscoios_xe17.9.2a--
OSciscoios_xe17.9.3--
OSciscoios_xe17.9.3a--
OSciscoios_xe17.9.4--
OSciscoios_xe17.9.4a--
OSciscoios_xe17.9.5--
OSciscoios_xe17.9.5a--
OSciscoios_xe17.9.5b--
OSciscoios_xe17.9.5c--
OSciscoios_xe17.9.5d--
OSciscoios_xe17.9.5e--
OSciscoios_xe17.9.5f--
OSciscoios_xe17.9.6--
OSciscoios_xe17.9.6a--
OSciscoios_xe17.9.7--
OSciscoios_xe17.9.7a--
OSciscoios_xe17.9.7b--
OSciscoios_xe17.9.8--
OSciscoios_xe17.9.9--
OSciscoios_xe3.13.10s--
OSciscoios_xe3.13.9s--
OSciscoios_xe3.16.10as--
OSciscoios_xe3.16.10bs--
OSciscoios_xe3.16.10s--
OSciscoios_xe3.16.6bs--
OSciscoios_xe3.16.7as--
OSciscoios_xe3.16.7bs--
OSciscoios_xe3.16.7s--
OSciscoios_xe3.16.8s--
OSciscoios_xe3.16.9s--
OSciscoios_xe3.18.3asp--
OSciscoios_xe3.18.3bsp--
OSciscoios_xe3.18.3sp--
OSciscoios_xe3.18.4s--
OSciscoios_xe3.18.4sp--
OSciscoios_xe3.18.5sp--
OSciscoios_xe3.18.6sp--
OSciscoios_xe3.18.7sp--
OSciscoios_xe3.18.8asp--
OSciscoios_xe3.18.9sp--

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