CVE-2026-42800

HIGHNVD 7.47.4—

7.4

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.

CVSS v3: 7.4
EG Score: 7.4(high)
EPSS: 3.0%
KEV: Not listed

Published

April 30, 2026

Last Modified

May 5, 2026

Advisory Details (1)

Auto-updated Apr 30, 2026

No patch confirmed yet.

generic

Security Center

https://www.asrmicro.com/en/goods/psirt?cid=44

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 13× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
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2026-05-27 13:40 UTCepss_batch
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2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 15:03 UTCEG score recompute
2026-05-20 15:03 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-42800?

CVE-2026-42800 is a high vulnerability published on April 30, 2026. NULL pointer dereference vulnerability in ASR1903 in ASR LapwingLinux on Linux (imsclient modules) allows Pointer Manipulation. This vulnerability is associated with program files sip/utils/src/sipuri.c.

When was CVE-2026-42800 disclosed?

CVE-2026-42800 was first published in the National Vulnerability Database on April 30, 2026, with the most recent update on May 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-42800 actively exploited?

CVE-2026-42800 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-42800?

CVE-2026-42800 has a CVSS v3 base score of 7.4 (NVD).

How do I remediate CVE-2026-42800?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42800, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-42800

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Security Center

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-42800?

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Frequently asked(5)

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