Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2002-1091

25
FAUCET Score

CVE-2002-1091 describes a heap memory corruption vulnerability in Netscape 6.2.3 and earlier, and Mozilla 1.0.1, which allows remote attackers to execute arbitrary code by supplying a specially crafted GIF image with a zero width. This vulnerability has a CVSS score of 7.5, indicating high severity due to its network-based attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impact. While there is no evidence of active exploitation, readily available exploit code, or inclusion in CISA's KEV catalog, the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.5CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.5:*:*:*:*:*:*:*
0.9.6CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.6:*:*:*:*:*:*:*
0.9.7CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.7:*:*:*:*:*:*:*
0.9.8CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.8:*:*:*:*:*:*:*
0.9.9CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.28%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0428 is in the 82nd percentile among its peer group of 51,485 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

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

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch

Vendor Advisories (1)

redhatCVE-2002-1091Important

security flaw

Sep 6, 2002

References

bugzilla.mozilla.org / show_bug.cgi
crash.ihug.co.nz / ~Sneuro/zerogif
marc.info
iss.net / security_center/static/10058.php
Vendor Advisory
mandrakesoft.com / security/advisories
redhat.com / support/errata/RHSA-2002-192.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-046.html
securityfocus.com / bid/5665
ExploitPatchVendor Advisory