7.5

CVE-2017-7659: apache software foundation apache http server NULL Pointer Dereference

Modified
AliasesALPINE-CVE-2017-7659DEBIAN-CVE-2017-7659
Published 26-07-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-7659 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in apache software foundation apache http server. EPSS estimates a 53.94% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 54% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
53.94%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
RHSA-2017:2483SUSE-SU-2018:0261-1

Timeline

  1. 26-07-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A maliciously constructed HTTP/2 request could cause mod_http2 in Apache HTTP Server 2.4.24, 2.4.25 to dereference a NULL pointer and crash the server process.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

53.94%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

No change 0.00 pp

From 53.94% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

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

Alpine1 product
  • apache2< 2.4.26-r0
Apache1 product
Apache software foundation1 product
Debian1 product
  • apache2< 2.4.25-4

4 vendors · 4 products

References

26 links
Show all 26 references