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CVE-2001-0271

25
FAUCET Score

CVE-2001-0271 describes a critical command injection vulnerability in mailnews.cgi versions 1.3 and earlier, allowing remote attackers to execute arbitrary commands by injecting shell metacharacters into the username field. This vulnerability carries a maximum CVSS score of 10.0, indicating a severe risk with network-based exploitation requiring low attack complexity and resulting in complete compromise of confidentiality, integrity, and availability. Despite its age and high severity, there is no public exploit code available in Metasploit, Nuclei, or ExploitDB, and it has not been added to CISA's KEV catalog; furthermore, there is no evidence of active exploitation or community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.3CPE matchmatch criteria
cpe:2.3:a:mailnews.cgi:mailnews.cgi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
3.33%
Probability of exploitation in next 30 days
EPSS Percentile
87.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0333 is in the 77th percentile among its peer group of 51,485 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/bugtraq/2001-02/0347.html
ExploitVendor Advisory
securityfocus.com / bid/2391