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Fencer Intel
high 7.5

CVE-2017-7867 json

International Components for Unicode (ICU) for C/C++ before 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow re…

published 2017-04-14 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16842

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.6%
EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

International Components for Unicode (ICU) for C/C++ before 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_setNativeIndex* function.

Patch / fix

  • icu Debian 14, Debian 13, Debian 12 57.1-6

debian advisories DEBIAN-CVE-2017-7867

  • icu Ubuntu 14.04 LTS 52.1-3ubuntu0.6
  • icu Ubuntu 16.04 LTS 55.1-7ubuntu0.2

ubuntu advisories UBUNTU-CVE-2017-7867

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • icu SLES 12 SP3, SLES 12 SP2-BCL, SLED 12 SP3 +10 more 52.1-8.7.1
  • icu SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 4.0-47.6.1

suse advisories SUSE-SU-2018:1401-2SUSE-SU-2018:1602-1SUSE-SU-2018:1401-1

  • icu Alpine 3.24, Alpine 3.23, Alpine 3.22 +16 more 58.2-r2
  • icu Alpine 3.2 55.1-r3
  • icu Alpine 3.3 56.1-r2
  • icu Alpine 3.5, Alpine 3.4 57.1-r3

alpine advisories ALPINE-CVE-2017-7867

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

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-7867 updated cvss 5.3

icu: Heap-buffer overflow in utext_setNativeIndex function

  • Red Hat Directory Server 8 icu Red Hat Enterprise Linux 5 icu Red Hat Enterprise Linux 6 icu, libicu Red Hat Enterprise Linux 7 icu, libicu Red Hat OpenShift Enterprise 2 icu
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.63% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel 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.