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CVE-2025-20333
CISA KEV
high
[KEV] Vulnerability in Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense (CVE-2025-20333)
Summary
vulnerability in Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense (CVE-2025-20333). Risk of unauthorized operations or information disclosure. Listed in CISA KEV — actively exploited.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-20333** has been found in Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
Note: CISA has officially confirmed this is **actively exploited in the wild**. Treat it with elevated urgency.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense CVE-2025-20333" on the vendor's site.
CVE-2025-20333 (Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense) — CWE-120 /
Listed in CISA KEV — actively exploited, treat as top priority.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-120) exists in Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense.
📍 Affected scope
Cisco secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense — .
🔥 Severity
Severity: High. Risk of unauthorized operations or information disclosure **Listed in CISA KEV** — actively exploited in the wild, treat as top priority.
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `secure-firewall-adaptive-security-appliance-and-secure-firewall-threat-defense` を grep し、稼働しているサービス・バージョンを把握する。
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4Consider incident declaration escalate
Notify SOC / on-callCISA KEV登録済 = 実環境で悪用が観測されている。Step 3 で兆候があればインシデント対応宣言、無くてもパッチ適用までWAF強化を最優先で。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
References
- advisory NVD
- CISCO https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-CISAED25-03?vs_f=Cisco%20Security%20Advisory%26vs_cat=Security%20Intelligence%26vs_type=RSS%26vs_p=Continued%20Evolution%20of%20Persistence%20Mechanism%20Against%20Cisco%20Secure%20Firewall%20Adaptive%20Security%20Appliance%20and%20Secure%20Firewall%20Threat%20Defense%26vs_k=1