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CVE-2015-5309

Published: Dec 7, 2015Updated: May 6, 2026 Sources: CVE List NVDCWE-189
4.3MEDIUM
NVD MITRE
EPSS Score
3.5%
Top 12.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Integer overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:MAu:NC:NI:NA:P
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:PAvailability
Partial
Open in CVSS calculator →

Weaknesses

CWE-189

Affected Products

opensuse
oss-project·DE
leapOn-premOS
Operating Systems / linux-distro
opensuseOn-premOS
Operating Systems / linux-distro
simon tatham
oss-projectaka putty
puttyMixed
Communications / voip-telephony
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2015-5309?We can run the check for you — a free external exposure review, no install. Check my exposure

References

http://www.debian.org/security/2015/dsa-3409
debian.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.html
lists.fedoraproject.org
and 4 more references View all →

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