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CVE-2007-0756

30
FAUCET Score

CVE-2007-0756 describes a denial-of-service vulnerability in Chicken of the VNC (cotv) version 2.0. An unauthenticated remote attacker can crash the application by sending a ServerInit packet with an excessively large computer-name size value, leading to a failed memory allocation and a NULL pointer dereference. This vulnerability has a high CVSS score of 7.8, indicating a critical impact on availability with low attack complexity and no authentication required. While not listed on the KEV catalog or Hot List, an exploit is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:a:chicken_of_the_vnc:chicken_of_the_vnc:2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.29%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-3257 · Feb 2, 2007
This CVE's current EPSS score of 0.0429 is in the 82nd percentile among its peer group of 51,506 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 / 33637
securityreason.com / securityalert/2220
exchange.xforce.ibmcloud.com / vulnerabilities/32166
exploit-db.com / exploits/3257
securityfocus.com / archive/1/458907/100/0/threaded
securityfocus.com / archive/1/466966/100/0/threaded
securityfocus.com / bid/22372
Exploit