CVE-2024-42391
CVE-2024-42391 is a medium-severity vulnerability in Cesanta Mongoose with a CVSS 3.x base score of 4.3. 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-823.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-39595
- Weakness: CWE-823
- Affected product: Cesanta Mongoose
- Published:
- Last modified:
Description
Use of Out-of-range Pointer Offset vulnerability in Cesanta Mongoose Web Server v7.14 allows an attacker to send an unexpected TLS packet and force the application to read unintended heap memory space.
Frequently asked questions
- What is CVE-2024-42391?
- Use of Out-of-range Pointer Offset vulnerability in Cesanta Mongoose Web Server v7.14 allows an attacker to send an unexpected TLS packet and force the application to read unintended heap memory space.
- How severe is CVE-2024-42391?
- CVE-2024-42391 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2024-42391 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-42391?
- CVE-2024-42391 affects Cesanta Mongoose. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-42391?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-42391 have an EU (EUVD) identifier?
- Yes. CVE-2024-42391 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-39595.
- When was CVE-2024-42391 published?
- CVE-2024-42391 was published on 2024-11-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:cesanta:mongoose:*:*:*:*:*:*:*:*
More vulnerabilities in Cesanta Mongoose
- CVE-2022-25299 — Critical (CVSS 9.8): This affects the package cesanta/mongoose before 7.6. The unsafe handling of file names during upload using…
- CVE-2020-25756 — Critical (CVSS 9.8): A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of…
- CVE-2019-19307 — Critical (CVSS 9.8): An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS…
- CVE-2019-12951 — Critical (CVSS 9.8): An issue was discovered in Mongoose before 6.15. The parse_mqtt() function in mg_mqtt.c has a critical heap-based…
- CVE-2018-20356 — Critical (CVSS 9.8): An invalid read of 8 bytes due to a use-after-free vulnerability in the mg_http_free_proto_data_cgi function call in…
- CVE-2018-20355 — Critical (CVSS 9.8): An invalid write of 8 bytes due to a use-after-free vulnerability in the mg_http_free_proto_data_cgi function call in…
All CVEs affecting Cesanta Mongoose →
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- CVE-2022-0729 — High (CVSS 8.8): Use of Out-of-range Pointer Offset in GitHub repository vim/vim prior to 8.2.4440.
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