9.8

CVE-2017-8786: pcre pcre2

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-8786DEBIAN-CVE-2017-8786
Published 05-05-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-8786 is a critical (CVSS 9.8) vulnerability in pcre pcre2. EPSS estimates a 4.07% chance of exploitation in the next 30 days, higher than 90.5% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
4.07%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Timeline

  1. 05-05-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

pcre2test.c in PCRE2 10.23 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

4.07%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.07% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.07%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (bugs.exim.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (blogs.gentoo.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • pcre2< 10.31-1
Pcre1 product
Ubuntu1 product
  • pcre2All versions (No fix recorded)

3 vendors · 3 products

References

8 links