CVE-2018-11546
CVE-2018-11546 is a critical-severity vulnerability in Md4c Project Md4c with a CVSS 3.x base score of 9.8. 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-125.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Md4c Project Md4c
- Published:
- Last modified:
Description
md4c 0.2.5 has a heap-based buffer over-read because md_is_named_entity_contents has an off-by-one error.
Frequently asked questions
- What is CVE-2018-11546?
- md4c 0.2.5 has a heap-based buffer over-read because md_is_named_entity_contents has an off-by-one error.
- How severe is CVE-2018-11546?
- CVE-2018-11546 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-11546 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-11546?
- CVE-2018-11546 affects Md4c Project Md4c. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-11546?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-11546 published?
- CVE-2018-11546 was published on 2018-05-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:md4c_project:md4c:0.2.5:*:*:*:*:*:*:*
More vulnerabilities in Md4c Project Md4c
- CVE-2018-11547 — Critical (CVSS 9.8): md_is_link_reference_definition_helper in md4c 0.2.5 has a heap-based buffer over-read because md_is_link_label…
- CVE-2018-11545 — Critical (CVSS 9.8): md4c 0.2.5 has a heap-based buffer overflow in md_merge_lines because md_is_link_label mishandles the case of a link…
- CVE-2018-11536 — Critical (CVSS 9.8): md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits.
- CVE-2018-12112 — High (CVSS 7.8): md_build_attribute in md4c.c in md4c 0.2.6 allows remote attackers to cause a denial of service (Segmentation fault and…
- CVE-2020-26148 — High (CVSS 7.5): md_push_block_bytes in md4c.c in md4c 0.4.5 allows attackers to trigger use of uninitialized memory, and cause a denial…
- CVE-2021-30027 — Medium (CVSS 5.5): md_analyze_line in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of…
All CVEs affecting Md4c Project Md4c →
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