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CVE-2026-20125

A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malformed HTTP requests to an affected device. A successful exploit could allow the attacker to cause a watchdog timer
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2be457e2cbb18a72dd3b9b899357a18b6f393aca209dad6b0eefde1d83f80868
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"IOS","vendor":"Cisco","versions":[{"status":"affected","version":"12.2(33)CY"},{"status":"affected","version":"12.2(33)CY1"},{"status":"affected","version":"12.2(33)CY2"},{"status":"affected","version":"12.2(55)SE"},{"status":"affected","version":"12.2(55)SE3"},{"status":"affected","version":"12.2(55)SE2"},{"status":"affected","version":"12.2(58)SE"},{"status":"affected","version":"12.2(55)SE1"},{"status":"affected","version":"12.2(58)SE1"},{"status":"affected","version":"12.2(55)SE4"},{"status":"affected","version":"12.2(58)SE2"},{"status":"affected","version":"12.2(55)SE5"},{"sta…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/affected/0

{"product":"Cisco IOS XE Software","vendor":"Cisco","versions":[{"status":"affected","version":"3.5.0E"},{"status":"affected","version":"3.5.1E"},{"status":"affected","version":"3.5.2E"},{"status":"affected","version":"3.5.3E"},{"status":"affected","version":"3.11.1S"},{"status":"affected","version":"3.11.2S"},{"status":"affected","version":"3.11.0S"},{"status":"affected","version":"3.11.3S"},{"status":"affected","version":"3.11.4S"},{"status":"affected","version":"3.12.0S"},{"status":"affected","version":"3.12.1S"},{"status":"affected","version":"3.12.2S"},{"status":"affected","version":"3.12…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"IOS","vendor":"Cisco","versions":[{"status":"affected","version":"12.2(33)CY"},{"status":"affected","version":"12.2(33)CY1"},{"status":"affected","version":"12.2(33)CY2"},{"status":"affected","version":"12.2(55)SE"},{"status":"affected","version":"12.2(55)SE3"},{"status":"affected","version":"12.2(55)SE2"},{"status":"affected","version":"12.2(58)SE"},{"status":"affected","version":"12.2(55)SE1"},{"status":"affected","version":"12.2(58)SE1"},{"status":"affected","version":"12.2(55)SE4"},{"status":"affected","version":"12.2(58)SE2"},{"status":"affected","version":"12.2(55)SE5"},{"sta…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/affected/0
{"product":"Cisco IOS XE Software","vendor":"Cisco","versions":[{"status":"affected","version":"3.5.0E"},{"status":"affected","version":"3.5.1E"},{"status":"affected","version":"3.5.2E"},{"status":"affected","version":"3.5.3E"},{"status":"affected","version":"3.11.1S"},{"status":"affected","version":"3.11.2S"},{"status":"affected","version":"3.11.0S"},{"status":"affected","version":"3.11.3S"},{"status":"affected","version":"3.11.4S"},{"status":"affected","version":"3.12.0S"},{"status":"affected","version":"3.12.1S"},{"status":"affected","version":"3.12.2S"},{"status":"affected","version":"3.12…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-228","description":"Improper Handling of Syntactically Invalid Structure","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-ios-http-dos-sbv8XRpL","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-http-dos-sbv8XRpL"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:968139d9cf8de033c41fbaa160ae3ac52a59c71814e887278df70513d01d0547 · sha256:2ea867b86ff37d63… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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