Buffer overflow in Yahoo Messenger

CVE-2007-3928

Buffer overflow in Yahoo! Messenger 8.1 allows user-assisted remote authenticated users to execute arbitrary code via a long e-mail address in an address book entry. NOTE: this might overlap CVE-2007-3638.

Vulnerability class: Buffer Overflow

Published 2007-07-21 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.6 (High). Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.057 (92.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.057 · newest: 0.057 · change: 0.000

Affected products

Yahoo Messenger — versions 8.1

Weakness classification (CWE)

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

References

secunia.com/advisories/26066 (Patch, Vendor Advisory, third-party-advisory)
www.xdisclose.com/advisory/XD100002.html (Patch)
www.securityfocus.com/bid/24926 (vdb-entry)
www.securitytracker.com/id (vdb-entry)
securityreason.com/securityalert/2906 (third-party-advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/35434 (vdb-entry)
lists.grok.org.uk/pipermail/full-disclosure/2007-July/064669.html (mailing-list)