CVE-2021-46671
CVE-2021-46671 is a medium-severity vulnerability in Atftp Project Atftp 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-125.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (68th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Atftp Project Atftp
- Published:
- Last modified:
Description
options.c in atftp before 0.7.5 reads past the end of an array, and consequently discloses server-side /etc/group data to a remote client.
Frequently asked questions
- What is CVE-2021-46671?
- options.c in atftp before 0.7.5 reads past the end of an array, and consequently discloses server-side /etc/group data to a remote client.
- How severe is CVE-2021-46671?
- CVE-2021-46671 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 low, integrity none, and availability none.
- Is CVE-2021-46671 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-46671?
- CVE-2021-46671 primarily affects Atftp Project Atftp. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-46671?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-46671 published?
- CVE-2021-46671 was published on 2022-02-04 and last updated on 2026-06-17.
References
- https://bugs.debian.org/1004974
- https://lists.debian.org/debian-lts-announce/2022/05/msg00040.html
- https://sourceforge.net/p/atftp/code/ci/9cf799c40738722001552618518279e9f0ef62e5
Affected products (4)
- cpe:2.3:a:atftp_project:atftp:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
More vulnerabilities in Atftp Project Atftp
- CVE-2019-11365 — Critical (CVSS 9.8): An issue was discovered in atftpd in atftp 0.7.1. A remote attacker may send a crafted packet triggering a stack-based…
- CVE-2021-41054 — High (CVSS 7.5): tftpd_file.c in atftp through 0.7.4 has a buffer overflow because buffer-size handling does not properly consider the…
- CVE-2020-6097 — High (CVSS 7.5): An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp…
- CVE-2019-11366 — Medium (CVSS 5.9): An issue was discovered in atftpd in atftp 0.7.1. It does not lock the thread_list_mutex mutex before assigning the…
All CVEs affecting Atftp Project Atftp →
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