What is CVE-2011-3959?

CVE-2011-3959 is a vulnerability in Google Chrome, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2012-02-09.

Is CVE-2011-3959 known to be exploited?

8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Google Chrome

CVE-2011-3959

Buffer overflow in the locale implementation in Google Chrome before 17.0.963.46 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

Vulnerability class: Buffer Overflow

Published 2012-02-09 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.014 (71.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.014 · change: -0.001

Affected products

Google Chrome

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2011-3959?: CVE-2011-3959 is a vulnerability in Google Chrome, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2012-02-09.
Is CVE-2011-3959 known to be exploited?: 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.