Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2025-71407 on 1 September 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
CVE-2025-71407
Nokogiri before 1.18.3 Stack Buffer Overflow and Use-After-Free
Description
Rejected reason: This CVE ID has been rejected as a duplicate.
INFO
Published Date :
Aug. 25, 2026, 4:16 p.m.
Last Modified :
Sept. 1, 2026, 9:18 p.m.
Remotely Exploit :
—
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE | ||||
| CVSS 4.0 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
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The following list is the news that have been mention
CVE-2025-71407 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-71407 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by [email protected]
Sep. 01, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 01, 2026
Action Type Old Value New Value Changed Description Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting DTD validation errors with long QName prefixes, and a use-after-free vulnerability during validation against untrusted XML Schemas. Attackers can trigger these vulnerabilities by providing malicious DTD content or untrusted XSD files to cause denial of service or potential code execution. Rejected reason: This CVE ID has been rejected as a duplicate. Removed CVSS V4.0 VulnCheck: AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Removed CVSS V3.1 VulnCheck: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CVSS V3.1 nvd-ai-agent-0.3.0-gemma-4-31B-it: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CWE VulnCheck: CWE-787 Removed CWE nvd-ai-agent-0.3.0-gemma-4-31B-it: CWE-416 Removed CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:* versions up to (excluding) 1.18.3 Removed CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:* versions up to (excluding) 1.18.3 Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2025/71xxx/CVE-2025-71407.json">CVE-2025-71407</a> Removed Reference VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m Removed Reference VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free Removed Reference Type VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m Types: Vendor Advisory Removed Reference Type VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free Types: Third Party Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m Types: Vendor Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free Types: Broken Link -
Initial Analysis by [email protected]
Sep. 01, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:* versions up to (excluding) 1.18.3 Added Reference Type VulnCheck: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m Types: Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-71407', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-25T16:10:48.304059Z'} -
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'sparklemotion', 'product': 'nokogiri', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.18.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.18.3', 'versionType': 'semver'}], 'packageURL': 'pkg:gem/nokogiri', 'defaultStatus': 'unaffected'}] Added Description Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting DTD validation errors with long QName prefixes, and a use-after-free vulnerability during validation against untrusted XML Schemas. Attackers can trigger these vulnerabilities by providing malicious DTD content or untrusted XSD files to cause denial of service or potential code execution. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-787 Added Reference https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m Added Reference https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-free