CVE-2024-34403

An issue was discovered in uriparser through 0.9.7. ComposeQueryMallocExMm in UriQuery.c has an integer overflow via a long string.

Published: 2024-05-02 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-34403 is rated Moderate Risk (47.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.32%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-34403

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.47% 1.32% +0.84%
2 2026-05-01 0.35% 0.47% +0.12%
3 2025-11-21 — 0.35% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-34403

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-34403

OS Trackers for CVE-2024-34403

vendor priority summary link
alpine — CVE-2024-34403: 1 source package rows (uriparser); 5 state rows across 5 repos (3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2024-34403
debian not yet assigned CVE-2024-34403 not yet assigned priority: Debian including 1 source packages (uriparser), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2024-34403
redhat medium — https://access.redhat.com/security/cve/CVE-2024-34403
suse high — https://www.suse.com/security/cve/CVE-2024-34403/
ubuntu medium CVE-2024-34403 medium priority: Ubuntu including 1 source packages (uriparser), 11 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 7, not-affected 3, ignored 1. https://ubuntu.com/security/CVE-2024-34403

Affected software / configurations for CVE-2024-34403

Vendor Product Version Raw CPE
uriparser_project uriparser <= 0.9.7 cpe:2.3:a:uriparser_project:uriparser:*:*:*:*:*:*:*:*
fedoraproject fedora 38 cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
fedoraproject fedora 40 cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

References for CVE-2024-34403

URL Tags
http://www.openwall.com/lists/oss-security/2024/05/06/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/05/06/3 Mailing List Third Party Advisory
https://github.com/uriparser/uriparser/issues/183 Issue Tracking Vendor Advisory
https://github.com/uriparser/uriparser/pull/186 Issue Tracking Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R36L762D3KX3GA66OOPWW7M7KKDRXDP/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ6KEUQXWCTYXGTBMZDD7CHJCYI52XY3/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UG4J7PD475LSCGCSHFU4GMU4TWLDSNW2/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/5R36L762D3KX3GA66OOPWW7M7KKDRXDP/
https://lists.fedoraproject.org/archives/list/[email protected]/message/CZ6KEUQXWCTYXGTBMZDD7CHJCYI52XY3/
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