What is the CVSS score of CVE-2015-6806?

CVE-2015-6806 has a CVSS 2.0 base score of 5.0 (Medium). CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2015-6806?

Yes, a public proof-of-concept exploit is available for CVE-2015-6806. Prioritise patching immediately. EPSS: 0.6%.

Gnu Screen CVE-2015-6806

MEDIUM

Buffer Overflow (CWE-119)

2015-09-28 cve@mitre.org

Denial Of Service Buffer Overflow Gnu Screen

5.0

CVSS 2.0 · NVD

Severity by source

NVD PRIMARY

5.0 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Confidentiality

None

Integrity

None

Availability

Lifecycle Timeline

CVE Published

Sep 28, 2015 - 20:59 cve.org

MEDIUM 5.0

DescriptionCVE.org

AnalysisAI

The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape sequence with a large repeat count value. Affected products include: Gnu Gnu Screen.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.