What is the CVSS score of CVE-2026-1425?

CVE-2026-1425 has a CVSS 3.1 base score of 5.6 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-1425?

Within 30 days: Identify affected systems running pymumu SmartDNS and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

CVE-2026-1425

MEDIUM

Buffer Overflow (CWE-119)

2026-01-26 cna@vuldb.com

Buffer Overflow Stack Overflow

5.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.6 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

CVE Published

Jan 26, 2026 - 08:16 nvd

MEDIUM 5.6

DescriptionCVE.org

A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The patch is identified as 2d57c4b4e1add9b4537aeb403f794a084727e1c8. Applying a patch is advised to resolve this issue.

AnalysisAI

Stack-based buffer overflow in pymumu SmartDNS versions up to 47.1 within the SVBC Record Parser component allows remote attackers to cause information disclosure and limited integrity/availability impact through specially crafted DNS SVCB/HTTPS records. Exploitation requires high complexity and specific conditions, making practical attacks difficult. No patch is currently available.

Technical ContextAI

This vulnerability (CWE-119: Buffer Overflow) affects A security flaw has been discovered in pymumu SmartDNS. A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The patch is identified as 2d57c4b4e1add9b4537aeb403f794a084727e1c8. Applying a p

Affected ProductsAI

Product: A security flaw has been discovered in pymumu SmartDNS. Versions: up to 47.1..

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.