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CVE-2017-7867

28
FAUCET Score

CVE-2017-7867 is a high-severity heap-based buffer overflow vulnerability affecting International Components for Unicode (ICU) for C/C++ versions prior to 2017-02-13, specifically impacting Debian distributions. This flaw, rated 7.5 CVSSv3, allows an unauthenticated attacker to cause a denial of service by exploiting an out-of-bounds write in the utf8TextAccess and utext_setNativeIndex* functions. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 58.2CPE matchmatch criteria
cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.63%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0463 is in the 84th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

redhatend of lifevia redhat_api
Product: Red Hat Directory Server 8Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: icu

Vendor Advisories (1)

redhatCVE-2017-7867Moderate

icu: Heap-buffer overflow in utext_setNativeIndex function

Feb 13, 2017

References

bugs.icu-project.org / trac/changeset/39671
Patch
bugs.chromium.org / p/oss-fuzz/issues/detail
Third Party Advisory
security.gentoo.org / glsa/201710-03
Third Party Advisory
oracle.com / technetwork/security-advisory/cpuapr2019-5072813.html
debian.org / security/2017/dsa-3830
Third Party Advisory
securityfocus.com / bid/97672
Third Party AdvisoryVDB Entry