CVE-2020-15811

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

4.06% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 90.3% 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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

NVD analysis status

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

Red Hat severity

Important. 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

2020-09-02 16:35Z6 YR AGO

Last updated

2024-08-04 13:30Z2 YR AGO

Reserved

2020-07-17

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-697Incorrect ComparisonPillar
• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base

Data version

5.1

Document digest

820e6186893d80fc916c6c0a3b5c71898922bfd1421244762ab1499a0f7b9aa1

• github.comhttps://github.com/squid-cache/squid/security/advisories/GHSA-c7p8-xqhm-49wvx_refsource_MISC
• www.debian.orgDSA-4751https://www.debian.org/security/2020/dsa-4751vendor-advisoryx_refsource_DEBIAN
• usn.ubuntu.comUSN-4477-1https://usn.ubuntu.com/4477-1/vendor-advisoryx_refsource_UBUNTU
• lists.fedoraproject.orgFEDORA-2020-73af8655ebhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-63f3bd656ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2020:1346http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1369http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.htmlvendor-advisoryx_refsource_SUSE
• lists.fedoraproject.orgFEDORA-2020-6c58bff862https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/vendor-advisoryx_refsource_FEDORA
• usn.ubuntu.comUSN-4551-1https://usn.ubuntu.com/4551-1/vendor-advisoryx_refsource_UBUNTU
• lists.debian.org[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00005.htmlmailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210219-0007/x_refsource_CONFIRM
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210226-0007/x_refsource_CONFIRM
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210226-0006/x_refsource_CONFIRM