01 Record
CVE-2026-47271
pam_usb: OOM guards removed by -DNDEBUG cause NULL dereference and authentication process crash
MediumPUBLISHEDCNA: GitHub_M
CNA base score5.1 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
pam_usb: OOM guards removed by -DNDEBUG cause NULL dereference and authentication process crash
03 Exploitation and scoring
- 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.
- EPSS probability
- 0.12% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 1.9% of scored records. A rank, not a probability.
- NVD base score
- 5.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-26.
- 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.
04 Metadata
- Published
- 2026-05-27 20:08Z5 MO AGO
- Last updated
- 2026-05-28 13:38Z5 MO AGO
- Reserved
- 2026-05-18
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.1)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.2
- Document digest
- 23deaadb8dd47bf73b81d65cf56190f3c01c89d536dbbd35fdecdc6768b01525
05 Affected products
VendorProductVersionsPlatforms