Is CVE-2012-3461 actively exploited?

CVE-2012-3461 has no public evidence of in-the-wild exploitation as of 2026-04-29.

What is the CVSS score for CVE-2012-3461?

CVE-2012-3461 has a CVSS score of 4.3 (UNKNOWN severity). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P.

How do I patch CVE-2012-3461?

Patch guidance is available from cypherpunks security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2012-3461.

CVE-2012-3461 - remediation guidance & executive summary

Q: Which products are affected by CVE-2012-3461?

2 products: cypherpunks libotr, cypherpunks libotr.

Description

The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in src/proto.c; and (4) decode function in toolkit/parse.c in libotr before 3.2.1 allocates a zero-length buffer when decoding a base64 string, which allows remote attackers to cause a denial of service (application crash) via a message with the value "?OTR:===.", which triggers a heap-based buffer overflow.

CVSS Metrics

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector: network
Access Cmplx: medium
Auth: none
Confidentiality: none
Integrity: none
Availability: partial
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: CYPHERPUNKS
Published: 8/20/2012
Last Modified: 4/29/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

cypherpunks : libotrcypherpunks : libotr

Remediation Guidance

Executive Summary

Cite this page

CVE-2012-3461. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2012-3461

View on NIST NVD

CVE-2012-3461 vulnerability