CVE-2024-23775

Integer Overflow vulnerability in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2, allows attackers to cause a denial of service (DoS) via mbedtls_x509_set_extension().

Published: 2024-01-31 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-23775 is rated Moderate Risk (52.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.12%). 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-2024-23775

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 0.39% 1.12% +0.73%
2 2026-02-18 0.29% 0.39% +0.10%
3 2026-01-08 — 0.29% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-23775

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-23775

OS Trackers for CVE-2024-23775

vendor priority summary link
alpine — CVE-2024-23775: 2 source package rows (mbedtls, mbedtls2); 11 state rows across 11 repos (3.17-main, 3.18-main, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 11, open 0. https://security.alpinelinux.org/vuln/CVE-2024-23775
debian not yet assigned CVE-2024-23775 not yet assigned priority: Debian including 1 source packages (mbedtls), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2024-23775
gentoo normal CVE-2024-23775: 1 GLSA(s) (202409-14), 1 atom(s) (net-libs/mbedtls); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2024-23775
ubuntu medium CVE-2024-23775 medium priority: Ubuntu including 1 source packages (mbedtls), 11 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 4, released 4, DNE 1, ignored 1, needed 1. https://ubuntu.com/security/CVE-2024-23775

Affected software / configurations for CVE-2024-23775

Vendor Product Version Raw CPE
arm mbed_tls >= 2.0.0, < 2.28.7 cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
trustedfirmware mbed_tls >= 3.0.0, < 3.5.2 cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*

References for CVE-2024-23775

cvelogic Threat Intelligence