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Fencer Vulns
high 7.5

CVE-2023-43615 json

Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.

published 2023-10-07 3 y ago modified 2026-07-18 3 mo ago also EUVD-2023-48021 , JLSEC-2025-222

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.

Patch / fix

  • julia MbedTLS_jll 2.28.6+0
  • mbed mbedtls 2.28.5, 3.5.0
  • mbedtls Debian 14, Debian 13 2.28.5-1

debian advisories DEBIAN-CVE-2023-43615

  • mbedtls Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 2.28.5-r0
  • mbedtls2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 2.28.5-r0
  • mbedtls3 Alpine 3.24 2.28.5-r0

alpine advisories ALPINE-CVE-2023-43615

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
julia MbedTLS_jll
<2.28.6+0
2.28.6+0

Affected products

  • mbed mbedtls

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.