What is CVE-2014-1692?

CVE-2014-1692 is a high-severity vulnerability in OpenBSD OpenSSH, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.3/10. Published 2014-01-29.

How severe is CVE-2014-1692?

High severity. CVSS v3 base score is 7.3 out of 10.

Is CVE-2014-1692 known to be exploited?

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

Buffer overflow in OpenBSD OpenSSH

CVE-2014-1692

The hash_buffer function in schnorr.c in OpenSSH through 6.4, when Makefile.inc is modified to enable the J-PAKE protocol, does not initialize certain data structures, which might allow remote attackers to cause a denial of service (memory corruption) or have unspecified other impact via vectors that trigger an error condition.

Vulnerability class: Buffer Overflow

Published 2014-01-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.046 (91.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000

Affected products

OpenBSD OpenSSH

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

marc.info/ (vendor-advisory, Third Party Advisory)
marc.info/ (vendor-advisory, Third Party Advisory)
www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/Attic/schnorr.c.diff
www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/schnorr.c (Vendor Advisory)
www-01.ibm.com/support/docview.wss (Third Party Advisory)
openwall.com/lists/oss-security/2014/01/29/2 (mailing-list, Mailing List, Third Party Advisory)
osvdb.org/102611 (vdb-entry, Broken Link)
secunia.com/advisories/60184 (Third Party Advisory, third-party-advisory)
www.securityfocus.com/bid/65230 (VDB Entry, Third Party Advisory, vdb-entry)
openwall.com/lists/oss-security/2014/01/29/10 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2014-1692?: CVE-2014-1692 is a high-severity vulnerability in OpenBSD OpenSSH, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.3/10. Published 2014-01-29.
How severe is CVE-2014-1692?: High severity. CVSS v3 base score is 7.3 out of 10.
Is CVE-2014-1692 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.