Deference after null check in ims_client sip
Priority LOW 32CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
NULL pointer dereference vulnerability in ASR1903 in ASR Lapwing_Linux on Linux (ims_client modules) allows Pointer Manipulation. This vulnerability is associated with program files sip/utils/src/sipuri.c.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00237 14th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
No affected products listed by the sources yet.
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:asrmicro:asr1901_firmware:*:*:*:*:*:*:*:* | before 1.225.003 | Vulnerable | ASR |
| cpe:2.3:h:asrmicro:asr1901:-:*:*:*:*:*:*:* | not specified by NVD | Running on | ASR |
| cpe:2.3:o:asrmicro:asr1903_firmware:*:*:*:*:*:*:*:* | before 1.225.003 | Vulnerable | ASR |
| cpe:2.3:h:asrmicro:asr1903:-:*:*:*:*:*:*:* | not specified by NVD | Running on | ASR |
- cpe:2.3:o:asrmicro:asr1901_firmware:*:*:*:*:*:*:*:* Versions before 1.225.003 Vulnerable ·ASR
- cpe:2.3:h:asrmicro:asr1901:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASR
- cpe:2.3:o:asrmicro:asr1903_firmware:*:*:*:*:*:*:*:* Versions before 1.225.003 Vulnerable ·ASR
- cpe:2.3:h:asrmicro:asr1903:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-42800
- 2026-10-03 Alias added: GHSA-6438-jwc8-2c68
References
Sources
- CVE-2026-42800 · CVE Program
- CVE-2026-42800 · NVD
- FIRST EPSS
- GHSA-6438-jwc8-2c68 · GitHub Advisory Database · CC BY 4.0
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