Buffer overflow in Exim

CVE-2020-28016

Exim 4 before 4.94.2 allows an off-by-two Out-of-bounds Write because "-F ''" is mishandled by parse_fix_phrase.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (32.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Exim
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-28016?
CVE-2020-28016 is a high-severity vulnerability in Exim, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-05-06.
How severe is CVE-2020-28016?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-28016 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.