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Vulnerability details: VCID-srvp-hxzh-1kd9
Vulnerability ID VCID-srvp-hxzh-1kd9
Aliases CVE-2021-35937
Summary A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Status Published
Exploitability 0.5
Weighted Severity 5.8
Risk 2.9
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-59 Improper Link Resolution Before File Access ('Link Following')
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
System Score Found at
cvssv3 6.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35937.json
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 7e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2021-35937
cvssv3.1 6.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 6.4 https://nvd.nist.gov/vuln/detail/CVE-2021-35937
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35937.json
https://access.redhat.com/security/cve/CVE-2021-35937
https://api.first.org/data/v1/epss?cve=CVE-2021-35937
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35937
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://rpm.org/wiki/Releases/4.18.0
https://security.gentoo.org/glsa/202210-22
https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdf
1964125 https://bugzilla.redhat.com/show_bug.cgi?id=1964125
990543 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990543
cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
CVE-2021-35937 https://nvd.nist.gov/vuln/detail/CVE-2021-35937
RHSA-2024:0424 https://access.redhat.com/errata/RHSA-2024:0424
RHSA-2024:0435 https://access.redhat.com/errata/RHSA-2024:0435
RHSA-2024:0453 https://access.redhat.com/errata/RHSA-2024:0453
RHSA-2024:0463 https://access.redhat.com/errata/RHSA-2024:0463
RHSA-2024:0582 https://access.redhat.com/errata/RHSA-2024:0582
RHSA-2024:0647 https://access.redhat.com/errata/RHSA-2024:0647
RHSA-2024:1383 https://access.redhat.com/errata/RHSA-2024:1383
RHSA-2024:1477 https://access.redhat.com/errata/RHSA-2024:1477
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35937.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-35937
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.00322
EPSS Score 7e-05
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:49:27.199212+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.19/community.json 37.0.0