CVE-2020-15049

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

5.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 92.3% of scored records. A rank, not a probability.

NVD base score

8.8 (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:H/I:H/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

2020-06-30 17:55Z6 YR AGO

Last updated

2024-08-04 13:08Z2 YR AGO

Reserved

2020-06-25

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:N

Weaknesses

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

Data version

5.1

Document digest

97711caa448ecc5c73ab45becd391380735409a7e0d56245ce6b4ddff41f3414

• www.squid-cache.orghttp://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patchx_refsource_MISC
• www.squid-cache.orghttp://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patchx_refsource_MISC
• github.comhttps://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5x_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2020-cbebc5617ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-4732https://www.debian.org/security/2020/dsa-4732vendor-advisoryx_refsource_DEBIAN
• 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
• 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-20210312-0001/x_refsource_CONFIRM