9.8

CVE-2016-4540: fedoraproject fedora

Modified
AliasesUBUNTU-CVE-2016-4540
Published 22-05-2016Last modified 06-08-2024

Vulnerability summary

CVE-2016-4540 is a critical (CVSS 9.8) vulnerability in fedoraproject fedora. EPSS estimates a 6.06% chance of exploitation in the next 30 days, higher than 93.3% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
6.06%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 7 · Related 4
DLA-499-1DSA-3602-1RHSA-2016:2750SUSE-SU-2016:1504-1SUSE-SU-2016:1581-1SUSE-SU-2016:1638-1

Timeline

  1. 22-05-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The grapheme_stripos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

6.06%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

No change 0.00 pp

From 6.06% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.php.net)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu2 products
  • php5< 5.5.9+dfsg-1ubuntu4.17
  • php7.0< 7.0.4-7ubuntu2.1
Fedoraproject1 product
Opensuse1 product
Php1 product
  • phpEOL≤ 5.5.34 | 5.6.0 | 5.6.1 | 5.6.2 | 5.6.3 | 5.6.4 | 5.6.5 | 5.6.6 | 5.6.7 | 5.6.8 | 5.6.9 | 5.6.10 | 5.6.11 | 5.6.12 | 5.6.13 | 5.6.14 | 5.6.15 | 5.6.16 | 5.6.17 | 5.6.18 | 5.6.19 | 5.6.20 | 7.0.0 | 7.0.1 | 7.0.2 | 7.0.3 | 7.0.4 | 7.0.5

4 vendors · 5 products

References

18 links
Show all 18 references