CVE-2025-5025 | No QUIC certificate pinning with wolfSSL

Exp

libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.

Published: 2025-05-28 Last update: 2025-07-30 Assigner: 2499f714-1537-4658-8207-48ae4bb9eae9 Source: 2499f714-1537-4658-8207-48ae4bb9eae9

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2025-5025

EPSS CVSS CWE Exploit-DB Affected OS Tracker

Conclusion & alert: CVE-2025-5025 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-5025

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-5025

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	2026-03-24	0.01%	0.06%	+0.05%
2	2025-05-28	—	0.01%	—

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-5025

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
4.8	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N` 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:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. 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:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	2.2	2.5	134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-5025

CWE-295 MITRE ↗

OS Trackers for CVE-2025-5025

vendor	priority	summary	link
`alpine`	—	CVE-2025-5025: 1 source package rows (curl); 256 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 256, open 0.	https://security.alpinelinux.org/vuln/CVE-2025-5025
`debian`	unimportant	CVE-2025-5025 unimportant priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2025-5025
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2025-5025
`suse`	medium	CVE-2025-5025 severity moderate: SUSE including 290 source package names (0.0.17-1.1:curl-8.14.1-150600.4.28.1, 0.0.17-1.1:libcurl4-8.14.1-150600.4.28.1, …), 552 product×package rows across 145 product lines (Container bci/spack, Container containers/lmcache-lmstack-router, … (145 product lines)): Fixed 239, Known Affected 231, Known Not Affected 82.	https://www.suse.com/security/cve/CVE-2025-5025/
`ubuntu`	medium	CVE-2025-5025 medium priority: Ubuntu including 1 source packages (curl), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, trusty, upstream, xenial): not-affected 8, released 1.	https://ubuntu.com/security/CVE-2025-5025

Affected software / configurations for CVE-2025-5025

Vendor	Product	Version	Raw CPE
haxx	curl	>= 8.5.0, < 8.14.0	cpe:2.3:a:haxx:curl::::::::

References for CVE-2025-5025

URL	Tags
https://curl.se/docs/CVE-2025-5025.html	Vendor Advisory
https://curl.se/docs/CVE-2025-5025.json	Vendor Advisory
https://hackerone.com/reports/3153497	Exploit Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/05/28/5	Mailing List Third Party Advisory

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