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CVE-2001-0375

26
FAUCET Score

CVE-2001-0375 describes a denial-of-service vulnerability affecting Cisco PIX Firewall 515 and 520 devices running OS version 5.1.4, specifically when configured for AAA authentication with a TACACS+ server. Remote attackers can exploit this by sending a large volume of authentication requests, leading to service disruption. This vulnerability has a CVSS score of 5.0 (Medium), indicating a network-based attack with low complexity and no authentication required, resulting in partial availability impact. While not listed on the KEV catalog or Hot List, an exploit (EDB-20734) is available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:pix_firewall_515:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:pix_firewall_520:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.30%
Probability of exploitation in next 30 days
EPSS Percentile
95.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-20734 · Apr 6, 2001
This CVE's current EPSS score of 0.1030 is in the 94th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/6353
cisco.com / warp/public/707/pixfirewall-authen-flood-pub.shtml
securityfocus.com / bid/2551
ExploitPatchVendor Advisory