CVE-2026-2903: NULL Pointer Dereference in skvadrik re2c
A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.
AI Analysis
Technical Summary
CVE-2026-2903 is a medium-severity vulnerability affecting skvadrik re2c up to version 4.4. The issue is a null pointer dereference in the function check_and_merge_special_rules of the source file src/parse/ast.cc. Exploitation requires local access and does not involve user interaction or elevated privileges beyond low-level local privileges. The vulnerability can cause a crash or denial of service. A patch identified by commit febeb977936f9519a25d9fbd10ff8256358cdb97 is available to fix this flaw.
Potential Impact
Successful exploitation of this vulnerability allows a local attacker with low privileges to cause a null pointer dereference, leading to a denial of service condition by crashing the affected process. There is no indication of remote exploitation or privilege escalation.
Mitigation Recommendations
A patch is available for this vulnerability as indicated by the patch identifier febeb977936f9519a25d9fbd10ff8256358cdb97. It is recommended to apply this patch to affected versions 4.0 through 4.4 of skvadrik re2c to remediate the issue. No additional mitigations are specified.
CVE-2026-2903: NULL Pointer Dereference in skvadrik re2c
Description
A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.
CVSS v4.0
Score 4.8medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-2903 is a medium-severity vulnerability affecting skvadrik re2c up to version 4.4. The issue is a null pointer dereference in the function check_and_merge_special_rules of the source file src/parse/ast.cc. Exploitation requires local access and does not involve user interaction or elevated privileges beyond low-level local privileges. The vulnerability can cause a crash or denial of service. A patch identified by commit febeb977936f9519a25d9fbd10ff8256358cdb97 is available to fix this flaw.
Potential Impact
Successful exploitation of this vulnerability allows a local attacker with low privileges to cause a null pointer dereference, leading to a denial of service condition by crashing the affected process. There is no indication of remote exploitation or privilege escalation.
Mitigation Recommendations
A patch is available for this vulnerability as indicated by the patch identifier febeb977936f9519a25d9fbd10ff8256358cdb97. It is recommended to apply this patch to affected versions 4.0 through 4.4 of skvadrik re2c to remediate the issue. No additional mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-02-20T20:02:38.891Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 699a5593be58cf853b7fcba7
Added to database: 02/22/2026, 01:02:11 UTC
Last enriched: 06/24/2026, 15:08:19 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 196
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