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Ubuntu EUVDEUVD-2025-20082

| CVE-2025-52497 MEDIUM
Off-by-one Error (CWE-193)
2025-07-04 cve@mitre.org
4.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.8 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Ubuntu
MEDIUM
qualitative
SUSE
MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

Lifecycle Timeline

4
Patch released
Mar 25, 2026 - 20:47 nvd
Patch available
EUVD ID Assigned
Mar 16, 2026 - 02:42 euvd
EUVD-2025-20082
Analysis Generated
Mar 16, 2026 - 02:42 vuln.today
CVE Published
Jul 04, 2025 - 15:15 nvd
MEDIUM 4.8

DescriptionCVE.org

Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in mbedtls_pem_read_buffer and two mbedtls_pk_parse functions, via untrusted PEM input.

AnalysisAI

A security vulnerability in Mbed TLS before 3.6.4 (CVSS 4.8). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Technical ContextAI

Vulnerability type not specified by vendor. Affects Mbed TLS before 3.6.4.

RemediationAI

Apply the vendor-supplied patch immediately.

CVE-2021-44732 CRITICAL POC
9.8 Dec 20

Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_sessi

CVE-2022-35409 CRITICAL POC
9.1 Jul 15

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. Rated critical severity (CVSS 9.1), this vulnera

CVE-2025-52496 HIGH POC
7.8 Jul 04

Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An attacker may b

CVE-2023-45199 CRITICAL
9.8 Oct 07

Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution. Rated critical sev

CVE-2024-23744 HIGH POC
7.5 Jan 21

An issue was discovered in Mbed TLS 3.5.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n

CVE-2022-46393 CRITICAL
9.8 Dec 15

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. Rated critical severity (CVSS 9.8), this vulnera

CVE-2026-34877 CRITICAL
9.8 Apr 02

Mbed TLS versions 2.19.0 through 3.6.5 and 4.0.0 allow remote code execution through memory corruption when attackers mo

CVE-2018-0488 CRITICAL
9.8 Feb 13

ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0, when the truncated HMAC extension and CBC are used, allows

CVE-2018-0487 CRITICAL
9.8 Feb 13

ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a

CVE-2024-30166 CRITICAL
9.1 Apr 03

In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service

CVE-2018-9988 HIGH
7.5 Apr 10

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_key_exchange() tha

CVE-2018-9989 HIGH
7.5 Apr 10

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that co

Vendor StatusVendor

Ubuntu

Priority: Medium
mbedtls
Release Status Version
oracular ignored end of life, was needs-triage
bionic needed -
focal needed -
jammy needed -
noble needed -
upstream released 3.6.4
xenial needed -
plucky ignored end of life, was needed
questing needed -

Debian

Bug #1108786
mbedtls
Release Status Fixed Version Urgency
bullseye fixed 2.16.9-0.1+deb11u2 -
bullseye (security) fixed 2.16.9-0.1+deb11u3 -
bookworm vulnerable 2.28.3-1 -
trixie fixed 3.6.5-0.1~deb13u1 -
forky, sid fixed 3.6.5-0.1 -
(unstable) fixed 3.6.4-1 -

SUSE

Severity: Medium

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EUVD-2025-20082 vulnerability details – vuln.today

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