CVE-2026-10259
CVE-2026-10259 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 9.0
- CVSS v4: 7.4
- EPSS exploit prediction: 0% (38th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-33638
- Weakness: CWE-119
- Published:
- Last modified:
Description
A security vulnerability has been detected in H3C Magic B0 up to 100R002. The affected element is the function SetMobileAPInfoById of the file /goform/aspForm. Such manipulation of the argument param leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Frequently asked questions
- What is CVE-2026-10259?
- A security vulnerability has been detected in H3C Magic B0 up to 100R002. The affected element is the function SetMobileAPInfoById of the file /goform/aspForm. Such manipulation of the argument param leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- How severe is CVE-2026-10259?
- CVE-2026-10259 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-10259 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-10259?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-10259 have an EU (EUVD) identifier?
- Yes. CVE-2026-10259 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33638.
- When was CVE-2026-10259 published?
- CVE-2026-10259 was published on 2026-06-01 and last updated on 2026-06-17.
References
- https://github.com/666324/H3C-Magic-B0-vuln
- https://github.com/666324/H3C-Magic-B0-vuln/tree/main/H3C-Magic%20B0-vuln
- https://vuldb.com/cve/CVE-2026-10259
- https://vuldb.com/submit/824402
- https://vuldb.com/vuln/367539
- https://vuldb.com/vuln/367539/cti
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