CVE-2024-45158

An issue was discovered in Mbed TLS 3.6 before 3.6.1. A stack buffer overflow in mbedtls_ecdsa_der_to_raw() and mbedtls_ecdsa_raw_to_der() can occur when the bits parameter is larger than the largest supported curve. In some configurations with PSA disabled, all values of bits are affected. (This never happens in internal library calls, but can affect applications that call these functions directly.)

Published: 2024-09-05 Last update: 2026-06-05 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-45158 is rated Moderate Risk (64.3/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.68%). 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-2024-45158

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 2026-01-25 0.50% 0.68% +0.18%
2 2025-11-30 0.66% 0.50% -0.15%
3 2025-10-18 — 0.66% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-45158

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-45158

OS Trackers for CVE-2024-45158

vendor priority summary link
alpine — CVE-2024-45158: 1 source package rows (mbedtls); 4 state rows across 4 repos (3.20-main, 3.21-main, 3.22-main, edge-main); fixed 4, open 0. https://security.alpinelinux.org/vuln/CVE-2024-45158
debian unimportant CVE-2024-45158 unimportant priority: Debian including 1 source packages (mbedtls), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-45158
ubuntu medium CVE-2024-45158 medium priority: Ubuntu including 1 source packages (mbedtls), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): not-affected 7, ignored 1, released 1. https://ubuntu.com/security/CVE-2024-45158

Affected software / configurations for CVE-2024-45158

Vendor Product Version Raw CPE
trustedfirmware mbed_tls 3.6.0 cpe:2.3:a:trustedfirmware:mbed_tls:3.6.0:*:*:*:*:*:*:*

References for CVE-2024-45158

cvelogic Threat Intelligence