How severe is CVE-2025-30742?

CVE-2025-30742 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-30742 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-30742?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-30742 have an EU (EUVD) identifier?

Yes. CVE-2025-30742 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8105.

When was CVE-2025-30742 published?

CVE-2025-30742 was published on 2025-03-26 and last updated on 2026-06-17.

CVE-2025-30742

CVE-2025-30742 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-193.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-8105
Weakness: CWE-193
Published: 2025-03-26
Last modified: 2026-06-17

Description

httpd.c in atophttpd 2.8.0 has an off-by-one error and resultant out-of-bounds read because a certain 1024-character req string would not have a final '\0' character.

Frequently asked questions

What is CVE-2025-30742?: httpd.c in atophttpd 2.8.0 has an off-by-one error and resultant out-of-bounds read because a certain 1024-character req string would not have a final '\0' character.
How severe is CVE-2025-30742?: CVE-2025-30742 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-30742 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-30742?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-30742 have an EU (EUVD) identifier?: Yes. CVE-2025-30742 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8105.
When was CVE-2025-30742 published?: CVE-2025-30742 was published on 2025-03-26 and last updated on 2026-06-17.

References

Other CWE-193 (Off-by-one Error) vulnerabilities

CVE-2024-10442 — Critical (CVSS 10.0): Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066,…
CVE-2026-53309 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions()…
CVE-2024-38441 — Critical (CVSS 9.8): Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to…
CVE-2023-46853 — Critical (CVSS 9.8): In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n is used…
CVE-2023-38429 — Critical (CVSS 9.8): An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/connection.c in ksmbd has an off-by-one error in…
CVE-2022-34970 — Critical (CVSS 9.8): Crow before 1.0+4 has a heap-based buffer overflow via the function qs_parse in query_string.h. On successful…

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