TI-2012-03351 Aliases CVE-2012-3893 GHSA-wwff-vvq2-6hmg

The FlexVPN implementation in Cisco IOS 15.2 and 15.3 allows remote authenticated users…

LOW 30Published 2012-09-16 · Updated 2024-09-16

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

The FlexVPN implementation in Cisco IOS 15.2 and 15.3 allows remote authenticated users to cause a denial of service (spoke crash) via spoke-to-spoke traffic, aka Bug ID CSCtz02622.

Why it matters now

EPSS 0.00933 60th 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 · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios:15.2:::::::*	15.2	Vulnerable	Cisco
cpe:2.3:o:cisco:ios:15.3:::::::*	15.3	Vulnerable	Cisco

cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:15.3:*:*:*:*:*:*:* Versions 15.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2012-3893
2026-10-03 Alias added: GHSA-wwff-vvq2-6hmg

References

Other 1

http://www.cisco.com/en/US/docs/ios/15_2s/release/notes/15_2s_caveats_15_2_4s.html

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