TI-2012-00349 Aliases CVE-2012-0383 GHSA-fhr5-wq74-m4f9

Memory leak in the NAT feature in Cisco IOS 12.4, 15.0, and 15.1 allows remote attackers…

LOW 38CWE-399Published 2012-03-29 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Complete
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

Memory leak in the NAT feature in Cisco IOS 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (memory consumption, and device hang or reload) via SIP packets that require translation, related to a "memory starvation vulnerability," aka Bug ID CSCti35326.

Why it matters now

EPSS 0.01988 80th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios:12.4:::::::*	12.4	Vulnerable	Cisco
cpe:2.3:o:cisco:ios:15.0:::::::*	15.0	Vulnerable	Cisco
cpe:2.3:o:cisco:ios:15.1:::::::*	15.1	Vulnerable	Cisco

cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:* Versions 12.4 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2012-0383
2026-10-03 Alias added: GHSA-fhr5-wq74-m4f9

References

Advisory 1

20120328 Cisco IOS Software Network Address Translation Vulnerability

Other 1

80701

TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
TI-2017-09019 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
TI-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8

See all 617 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences