PT-2025-23062 · Libcurl+2 · Libcurl+2

Hiroki Kurosawa + 1 · Published 2025-05-28 · Updated 2026-05-18 · CVE-2025-4947

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libcurl (affected versions not specified)

Description The issue occurs when libcurl establishes a QUIC connection to a host specified as an IP address in the URL, resulting in the accidental skipping of certificate verification. This failure to verify certificates makes it impossible to detect impostors or man-in-the-middle attacks.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

AZL-62055

BDU:2025-10232

CLEANSTART-2026-AY18527

CLEANSTART-2026-BW46578

CLEANSTART-2026-DI23929

CLEANSTART-2026-LQ42192

CLEANSTART-2026-OF85770

CVE-2025-4947

ECHO-2EA7-6406-0262

JLSEC-2026-432

OPENSUSE-SU-2025:15176-1

SUSE-SU-2025:03198-1

SUSE-SU-2025:20675-1

SUSE-SU-2025_03198-1

Affected Products

Astra Linux

Suse

Libcurl

References · 305

• https://nvd.nist.gov/vuln/detail/CVE-2023-28321 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-27779 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-4947 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-7264 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03198-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-0500 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-27781 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-27534 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-22924 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:20675-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8169 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-22925 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-1000257 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2016-8619 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2014-0139 · Security Note