Improper input validation in Cisco Pgw 2200 Softswitch

CVE-2010-1562

The SIP implementation on the Cisco PGW 2200 Softswitch with software 9.7(3)S before 9.7(3)S9 and 9.7(3)P before 9.7(3)P9 allows remote attackers to cause a denial of service (device crash) via a malformed Contact header, aka Bug ID CSCsj98521.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2010-05-14 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.8 (High). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.018 (77.4th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Cisco Pgw 2200 Softswitch — versions 9.7(3)p, 9.7(3)s, 9.7\(3\)s

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

osvdb.org/64684 (vdb-entry)
www.cisco.com/en/US/products/products_security_advisory09186a0080b2c519.shtml (vendor-advisory, Patch, Vendor Advisory)