CVE-2018-20431

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.6% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD analysis status

Modified. 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

2018-12-24 05:00Z7 YR AGO

Last updated

2024-08-05 11:58Z2 YR AGO

Reserved

2018-12-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

d0fc01de16b5eae4ce0a857f9e588939a0f0ad8b3ea1346ca2d69cb618a84edd

• gnunet.orghttps://gnunet.org/bugs/view.php?id=5494x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20181224 [SECURITY] [DLA 1616-1] libextractor security updatehttps://lists.debian.org/debian-lts-announce/2018/12/msg00015.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4361https://www.debian.org/security/2018/dsa-4361vendor-advisoryx_refsource_DEBIAN
• gnunet.orghttps://gnunet.org/git/libextractor.git/tree/ChangeLogx_refsource_MISC
• gnunet.orghttps://gnunet.org/git/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7x_refsource_MISC
• www.securityfocus.com106300http://www.securityfocus.com/bid/106300vdb-entryx_refsource_BID