CVE-2021-38165

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

4.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2021-08-07 17:33Z5 YR AGO

Last updated

2024-08-04 01:37Z2 YR AGO

Reserved

2021-08-07

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-522Insufficiently Protected CredentialsClass

Data version

5.1

Document digest

397eb5a802be1b97fc16de1086579ca9bf71fcb126e703dcd9852d050aef83fb

• bugs.debian.orghttps://bugs.debian.org/991971x_refsource_MISC
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/08/07/1x_refsource_MISC
• lynx.invisible-island.nethttps://lynx.invisible-island.net/current/CHANGES.htmlx_refsource_MISC
• github.comhttps://github.com/w3c/libwww/blob/f010b4cc58d32f34b162f0084fe093f7097a61f0/Library/src/HTParse.c#L118x_refsource_MISC
• www.openwall.com[oss-security] 20210807 Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)http://www.openwall.com/lists/oss-security/2021/08/07/9mailing-listx_refsource_MLIST
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/08/07/11x_refsource_MISC
• www.openwall.com[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)http://www.openwall.com/lists/oss-security/2021/08/07/12mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)http://www.openwall.com/lists/oss-security/2021/08/07/11mailing-listx_refsource_MLIST
• lists.debian.org[debian-lts-announce] 20210809 [SECURITY] [DLA 2736-1] lynx security updatehttps://lists.debian.org/debian-lts-announce/2021/08/msg00010.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4953https://www.debian.org/security/2021/dsa-4953vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2021-f59bda7d94https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKNK7GQBJBUBMJVNKVC7RTCYWUYMFJQW/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-232161e4d5https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6PZF7JNTFCOJ62HXZG4Q2NEHSZ6IO2V/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-57287bd052https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7YMUHFJJWTZ6HBHTYXVDPNZINGGURHDW/vendor-advisoryx_refsource_FEDORA