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CVE-2025-20362

97
FAUCET Score

CVE-2025-20362 is a critical authentication bypass vulnerability in Cisco Secure Firewall ASA and FTD Software, allowing unauthenticated remote attackers to access restricted VPN URL endpoints due to improper input validation. With a CVSS score of 8.6 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to information disclosure, unauthorized access, and denial-of-service conditions. This flaw is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV catalog, and has garnered significant community attention and media coverage, indicating widespread concern and potential for further exploitation. Cisco strongly recommends immediate upgrades to patched software versions to mitigate the risk of unexpected device reloads and DoS attacks.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.12, < 9.12.4.72CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.14, < 9.14.4.28CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.16, < 9.16.4.85CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.17.0, < 9.18.4.67CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.19, < 9.20.4.10CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
85.54%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Sep 25, 2025
Nuclei: CVE-2025-20362 · Oct 6, 2025
This CVE's current EPSS score of 0.8554 is in the 100th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/resources/asa_ftd_continued_attacks
Vendor Advisory
cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-YROOTUW
Vendor Advisory