Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service.
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service.
Why it matters now
EPSS 0.01094 65th 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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios:11.2p:*:*:*:*:*:*:* | 11.2p | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:11.3t:*:*:*:*:*:*:* | 11.3t | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:* | 12.0t | Vulnerable | Cisco |
| cpe:2.3:o:cisco:pix_firewall_software:4.2\(1\):*:*:*:*:*:*:* | 4.2(1) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios:11.2p:*:*:*:*:*:*:* Versions 11.2p Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:11.3t:*:*:*:*:*:*:* Versions 11.3t Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:* Versions 12.0t Vulnerable ·Cisco
- cpe:2.3:o:cisco:pix_firewall_software:4.2\(1\):*:*:*:*:*:*:* Versions 4.2(1) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-0157
- 2026-10-03 Alias added: GHSA-3q9w-98w3-7hrf
References
Other 1
More Cisco Ios vulnerabilities
- 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
Sources
- CVE-1999-0157 · CVE Program
- CVE-1999-0157 · NVD
- FIRST EPSS
- GHSA-3q9w-98w3-7hrf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences