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CVE-2007-3121

20
FAUCET Score

CVE-2007-3121 describes a buffer overflow vulnerability in the CCdecode function of the zvbi-ntsc-cc tool within the Zapping VBI Library (ZVBI) prior to version 0.2.25. This flaw allows attackers to trigger a denial of service (application crash) and potentially execute arbitrary code by supplying excessively long data during a reception error. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and having low attack complexity, with potential impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.2.20CPE matchmatch criteria
cpe:2.3:a:zapping:zapping_vbi_library:0.2.20:*:*:*:*:*:*:*
0.2.21CPE matchmatch criteria
cpe:2.3:a:zapping:zapping_vbi_library:0.2.21:*:*:*:*:*:*:*
0.2.22CPE matchmatch criteria
cpe:2.3:a:zapping:zapping_vbi_library:0.2.22:*:*:*:*:*:*:*
0.2.23CPE matchmatch criteria
cpe:2.3:a:zapping:zapping_vbi_library:0.2.23:*:*:*:*:*:*:*
0.2.24CPE matchmatch criteria
cpe:2.3:a:zapping:zapping_vbi_library:0.2.24:*:*:*:*:*:*:*

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
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 66th percentile among its peer group of 51,466 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

osvdb.org / 43454
sourceforge.net / project/shownotes.php
Patch
vupen.com / english/advisories/2007/2088