Is CVE-2017-7868 in the CISA KEV catalog?

No. CVE-2017-7868 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-7868?

CVE-2017-7868 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-7868?

CVE-2017-7868 has an EPSS score of 4.45% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-7868?

Upgrade icu on debian 11 to 57.1-6 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2017-7868

HIGHEPSS 90th pctl

7.5

CVSS v3

NVD

Description

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_moveIndex32* function.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

icuDebian

Fixed in:57.1-6CVE-2017-7868

icuUbuntu

Fixed in:52.1-3ubuntu0.6USN-3274-1

Fixed in:55.1-7ubuntu0.2USN-3274-1

libicu52Ubuntu

Fixed in:52.1-3ubuntu0.6USN-3274-1

libicu55Ubuntu

Fixed in:55.1-7ubuntu0.2USN-3274-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

4.45%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Patch1

bugs.icu-project.org

Third-Party Advisory4

Other references1

oracle.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.