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CVE-2021-30498

25
FAUCET Score

CVE-2021-30498 is a heap buffer overflow vulnerability in the libcaca library, specifically within the export_tga function in export.c, affecting fedoraproject and libcaca_project distributions. This flaw carries a high severity CVSS score of 7.8, indicating that an attacker could achieve high confidentiality, integrity, and availability impacts through a local attack requiring user interaction. While the vulnerability is significant, there is no evidence of active exploitation, publicly available exploit code, or community discussion surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
0.99CPE matchmatch criteria
cpe:2.3:a:libcaca_project:libcaca:0.99:beta14:*:*:*:*:*:*
0.99CPE matchmatch criteria
cpe:2.3:a:libcaca_project:libcaca:0.99:beta15:*:*:*:*:*:*
0.99CPE matchmatch criteria
cpe:2.3:a:libcaca_project:libcaca:0.99:beta16:*:*:*:*:*:*
0.99CPE matchmatch criteria
cpe:2.3:a:libcaca_project:libcaca:0.99:beta17:*:*:*:*:*:*
0.99CPE matchmatch criteria
cpe:2.3:a:libcaca_project:libcaca:0.99:beta18:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.35%
Probability of exploitation in next 30 days
EPSS Percentile
68.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0135 is in the 67th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.debian.org / debian-lts-announce/2025/07/msg00019.html
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / cacalabs/libcaca/issues/53
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2024/04/msg00004.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6WFGYICNTMNDNMDDUV4G2RYFB5HNJCOV
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/PC7EGOEQ5C4OD66ZUJJIIYEXBTZOCMZX
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ZSBCRN6EGQJUVOSD4OEEQ6XORHEM2CUL
Mailing ListThird Party Advisory