CVE-2021-26221
CVE-2021-26221 is a high-severity vulnerability in Ezxml Project Ezxml with a CVSS 3.x base score of 8.1. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Ezxml Project Ezxml
- Published:
- Last modified:
Description
The ezxml_new function in ezXML 0.8.6 and earlier is vulnerable to OOB write when opening XML file after exhausting the memory pool.
Frequently asked questions
- What is CVE-2021-26221?
- The ezxml_new function in ezXML 0.8.6 and earlier is vulnerable to OOB write when opening XML file after exhausting the memory pool.
- How severe is CVE-2021-26221?
- CVE-2021-26221 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2021-26221 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26221?
- CVE-2021-26221 affects Ezxml Project Ezxml. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-26221?
- 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.
- When was CVE-2021-26221 published?
- CVE-2021-26221 was published on 2021-02-08 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ezxml_project:ezxml:*:*:*:*:*:*:*:*
More vulnerabilities in Ezxml Project Ezxml
- CVE-2021-26222 — High (CVSS 8.1): The ezxml_new function in ezXML 0.8.6 and earlier is vulnerable to OOB write when opening XML file after exhausting the…
- CVE-2021-26220 — High (CVSS 8.1): The ezxml_toxml function in ezxml 0.8.6 and earlier is vulnerable to OOB write when opening XML file after exhausting…
- CVE-2021-31598 — High (CVSS 7.5): An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_decode() performs incorrect memory handling…
- CVE-2019-20006 — High (CVSS 7.5): An issue was discovered in ezXML 0.8.3 through 0.8.6. The function ezxml_char_content puts a pointer to the internal…
- CVE-2022-30045 — Medium (CVSS 6.5): An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_decode() performs incorrect memory handling…
- CVE-2021-31348 — Medium (CVSS 6.5): An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_parse_str() performs incorrect memory handling…
All CVEs affecting Ezxml Project Ezxml →
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