LOW
CVE-2026-2903
CWE-404Published: February 22, 2026· Updated: Feb 23, 2026
3.3
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:2.0th
Official 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.
Technical Analysis
CVE-2026-2903 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
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NVD Detail
Official NIST entry
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All References (8)
Quick Facts
CVE IDCVE-2026-2903
CVSS Score3.3 / 10
SeverityLOW
WeaknessCWE-404
CISA KEVNo
EPSS (30d)0.01%
PublishedFeb 22, 2026
Related CVEs (CWE-404)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-2903 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.