CVE-2025-13397

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.2% of scored records. A rank, not a probability.

NVD base score

4.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-11-19 15:32Z9 MO AGO

Last updated

2025-11-19 16:48Z9 MO AGO

Reserved

2025-11-19

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X

Weaknesses

• CWE-404Improper Resource Shutdown or ReleaseClass
• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

fe20cfd3f65a446dd5df137afa4cb876318d086c32136c2caef48d0135281ee1

• vuldb.comVDB-332925 | mrubyc alloc.c mrbc_raw_realloc null pointer dereferencehttps://vuldb.com/?id.332925vdb-entrytechnical-description
• vuldb.comVDB-332925 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.332925signaturepermissions-required
• vuldb.comSubmit #692130 | mrubyc 3.4 NULL Pointer Dereferencehttps://vuldb.com/?submit.692130third-party-advisory
• github.comhttps://github.com/mrubyc/mrubyc/issues/244issue-tracking
• github.comhttps://github.com/mrubyc/mrubyc/issues/244#issuecomment-3400382026issue-tracking
• github.comhttps://github.com/mrubyc/mrubyc/commit/009111904807b8567262036bf45297c3da8f1c87patch