CVE-2018-1000027

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

12.91% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 96.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2018-02-09 23:00Z8 YR AGO

Last updated

2024-08-05 12:33Z2 YR AGO

Reserved

2018-01-29

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
• CWE-117Improper Output Neutralization for LogsBase

Data version

5.1

Document digest

b46b86edb6a0e8f868ad05edf4ceedc34a232455e00e647aed2b2a2b062a29c7

• usn.ubuntu.comUSN-3557-1https://usn.ubuntu.com/3557-1/vendor-advisoryx_refsource_UBUNTU
• www.squid-cache.orghttp://www.squid-cache.org/Versions/v4/changesets/SQUID-2018_2.patchx_refsource_CONFIRM
• www.debian.orgDSA-4122https://www.debian.org/security/2018/dsa-4122vendor-advisoryx_refsource_DEBIAN
• www.squid-cache.orghttp://www.squid-cache.org/Advisories/SQUID-2018_2.txtx_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20180202 [SECURITY] [DLA 1266-1] squid3 security updatehttps://lists.debian.org/debian-lts-announce/2018/02/msg00001.htmlmailing-listx_refsource_MLIST
• github.comhttps://github.com/squid-cache/squid/pull/129/filesx_refsource_CONFIRM
• www.squid-cache.orghttp://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_2.patchx_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20180202 [SECURITY] [DLA 1267-1] squid security updatehttps://lists.debian.org/debian-lts-announce/2018/02/msg00002.htmlmailing-listx_refsource_MLIST
• usn.ubuntu.comUSN-4059-2https://usn.ubuntu.com/4059-2/vendor-advisoryx_refsource_UBUNTU