HIGH
httpd: mod_http2 NULL pointer dereference
Published Jul 26, 2017
7.5
HIGHCVSS 3.0
EPSS 53.94%
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.
Affected products
-
- Version 2.4.24, 2.4.25StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | n/a |
|
OR
- 2.4.24
- 2.4.25
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 6
httpd24-httpd-0:2.4.25-9.el6.1
Fixed · RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
httpd24-httpd-0:2.4.25-9.el6.1
Fixed · RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux 7
httpd24-httpd-0:2.4.25-9.el7.1
Fixed · RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
httpd24-httpd-0:2.4.25-9.el7.1
Fixed · RHSA-2017:2483
Red Hat Enterprise Linux 5
httpd
Not affected
Red Hat Enterprise Linux 6
httpd
Not affected
Red Hat Enterprise Linux 7
httpd
Not affected
Red Hat JBoss Core Services
httpd
Not affected
Red Hat JBoss Enterprise Application Platform 5
httpd
Not affected
Red Hat JBoss Enterprise Application Platform 6
httpd
Not affected
Red Hat JBoss Enterprise Web Server 1
httpd
Not affected
Red Hat JBoss Enterprise Web Server 2
httpd
Not affected
Red Hat JBoss Enterprise Web Server 3
httpd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | httpd24-httpd-0:2.4.25-9.el6.1 | Fixed | RHSA-2017:2483 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | httpd24-httpd-0:2.4.25-9.el6.1 | Fixed | RHSA-2017:2483 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | httpd24-httpd-0:2.4.25-9.el7.1 | Fixed | RHSA-2017:2483 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | httpd24-httpd-0:2.4.25-9.el7.1 | Fixed | RHSA-2017:2483 |
| Red Hat Enterprise Linux 5 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 6 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 7 | httpd | Not affected | n/a |
| Red Hat JBoss Core Services | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 1 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 3 | httpd | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
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
1 other source (Red Hat) ▾
5.9 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
53.94% 0.53939
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.53939
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (69 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 53.94% (0.53939) | 98.97th | v5 (v2026.06.15) |
| Sep 22, 2026 | 53.94% (0.53939) | 98.95th | v5 (v2026.06.15) |
| Sep 21, 2026 | 49.15% (0.49150) | 98.86th | v5 (v2026.06.15) |
| Sep 6, 2026 | 53.94% (0.53939) | 98.93th | v5 (v2026.06.15) |
| Sep 5, 2026 | 49.15% (0.49150) | 98.84th | v5 (v2026.06.15) |
| Aug 30, 2026 | 53.94% (0.53939) | 98.92th | v5 (v2026.06.15) |
| Aug 28, 2026 | 49.15% (0.49150) | 98.83th | v5 (v2026.06.15) |
| Aug 24, 2026 | 53.94% (0.53939) | 98.92th | v5 (v2026.06.15) |
| Aug 23, 2026 | 49.15% (0.49150) | 98.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 53.94% (0.53939) | 98.87th | v5 (v2026.06.15) |
| Mar 4, 2026 | 38.38% (0.38383) | 97.15th | v4 (v2025.03.14) |
| Mar 1, 2026 | 23.14% (0.23145) | 95.84th | v4 (v2025.03.14) |
| Feb 4, 2026 | 38.38% (0.38383) | 97.12th | v4 (v2025.03.14) |
| Feb 1, 2026 | 23.14% (0.23145) | 95.81th | v4 (v2025.03.14) |
| Jan 4, 2026 | 38.96% (0.38965) | 97.13th | v4 (v2025.03.14) |
| Jan 2, 2026 | 29.27% (0.29267) | 96.46th | v4 (v2025.03.14) |
| Jan 1, 2026 | 26.11% (0.26105) | 96.15th | v4 (v2025.03.14) |
| Dec 28, 2025 | 41.67% (0.41673) | 97.28th | v4 (v2025.03.14) |
| Dec 27, 2025 | 50.26% (0.50255) | 97.74th | v4 (v2025.03.14) |
| Dec 20, 2025 | 41.67% (0.41673) | 97.27th | v4 (v2025.03.14) |
| Dec 18, 2025 | 45.35% (0.45348) | 97.47th | v4 (v2025.03.14) |
| Dec 14, 2025 | 48.74% (0.48744) | 97.63th | v4 (v2025.03.14) |
| Dec 4, 2025 | 42.34% (0.42342) | 97.29th | v4 (v2025.03.14) |
| Dec 1, 2025 | 26.37% (0.26368) | 96.15th | v4 (v2025.03.14) |
| Nov 21, 2025 | 42.34% (0.42342) | 97.29th | v4 (v2025.03.14) |
| Nov 18, 2025 | 63.97% (0.63969) | 98.41th | v4 (v2025.03.14) |
| Nov 4, 2025 | 42.34% (0.42342) | 97.29th | v4 (v2025.03.14) |
| Nov 2, 2025 | 32.17% (0.32171) | 96.64th | v4 (v2025.03.14) |
| Nov 1, 2025 | 29.55% (0.29546) | 96.42th | v4 (v2025.03.14) |
| Oct 28, 2025 | 39.31% (0.39311) | 97.10th | v4 (v2025.03.14) |
| Oct 27, 2025 | 44.22% (0.44217) | 97.40th | v4 (v2025.03.14) |
| Oct 4, 2025 | 39.31% (0.39311) | 97.18th | v4 (v2025.03.14) |
| Oct 1, 2025 | 29.55% (0.29546) | 96.47th | v4 (v2025.03.14) |
| Sep 24, 2025 | 44.22% (0.44217) | 97.48th | v4 (v2025.03.14) |
| Sep 4, 2025 | 50.76% (0.50758) | 97.78th | v4 (v2025.03.14) |
| Sep 1, 2025 | 27.29% (0.27293) | 96.26th | v4 (v2025.03.14) |
| Aug 4, 2025 | 51.35% (0.51355) | 97.78th | v4 (v2025.03.14) |
| Aug 1, 2025 | 27.68% (0.27676) | 96.29th | v4 (v2025.03.14) |
| Jul 30, 2025 | 51.35% (0.51355) | 97.78th | v4 (v2025.03.14) |
| Jul 4, 2025 | 47.74% (0.47745) | 97.57th | v4 (v2025.03.14) |
| Jul 1, 2025 | 31.25% (0.31249) | 96.56th | v4 (v2025.03.14) |
| Jun 4, 2025 | 47.74% (0.47745) | 97.55th | v4 (v2025.03.14) |
| Jun 1, 2025 | 31.25% (0.31249) | 96.53th | v4 (v2025.03.14) |
| May 4, 2025 | 48.35% (0.48350) | 97.57th | v4 (v2025.03.14) |
| May 1, 2025 | 31.66% (0.31659) | 96.53th | v4 (v2025.03.14) |
| Apr 15, 2025 | 48.35% (0.48350) | 97.54th | v4 (v2025.03.14) |
| Mar 30, 2025 | 14.24% (0.14240) | 93.80th | v4 (v2025.03.14) |
| Mar 29, 2025 | 21.24% (0.21241) | 92.95th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.91% (0.13912) | 93.78th | v4 (v2025.03.14) |
| Jan 5, 2025 | 24.46% (0.24464) | 96.65th | v3 (v2023.03.01) |
| Dec 17, 2024 | 31.01% (0.31006) | 96.97th | v3 (v2023.03.01) |
| Feb 27, 2024 | 66.84% (0.66844) | 97.84th | v3 (v2023.03.01) |
| Jan 20, 2024 | 72.78% (0.72783) | 97.82th | v3 (v2023.03.01) |
| Nov 8, 2023 | 77.80% (0.77803) | 97.92th | v3 (v2023.03.01) |
| Oct 30, 2023 | 91.26% (0.91258) | 98.55th | v3 (v2023.03.01) |
| May 11, 2023 | 92.55% (0.92546) | 98.48th | v3 (v2023.03.01) |
| May 8, 2023 | 94.42% (0.94422) | 98.75th | v3 (v2023.03.01) |
| Apr 11, 2023 | 94.66% (0.94665) | 98.77th | v3 (v2023.03.01) |
| Mar 15, 2023 | 95.26% (0.95259) | 98.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.50% (0.95505) | 98.93th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.24% (0.05242) | 89.75th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.24% (0.05242) | 88.72th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.24% (0.05242) | 75.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 13.79% (0.13790) | 89.38th | v1 |
| Jan 6, 2022 | 13.79% (0.13790) | 89.25th | v1 |
| Sep 1, 2021 | 13.79% (0.13790) | 96.74th | v1 |
| Jun 8, 2021 | 13.79% (0.13790) | 0.00th | v1 |
| Jun 3, 2021 | 12.82% (0.12821) | 0.00th | v1 |
| Apr 14, 2021 | 12.33% (0.12329) | 0.00th | v1 |
Weaknesses (1)
References (29)
- http://www.debian.org/security/2017/dsa-3896 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/99132 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038711 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2483 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-7659 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1463199 Issue Tracking
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.apache.org/thread.html/1d0b746bbaa3a64890fcdab59ee9050aaa633b7143e7d412374e5a9a%40%3Cannounce.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-7659
- https://security.gentoo.org/glsa/201710-32 vendor-advisoryx_refsource_GENTOO
- https://security.netapp.com/advisory/ntap-20180601-0002/ x_refsource_CONFIRM
- https://support.apple.com/HT208221 x_refsource_CONFIRM
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-7659
- https://www.tenable.com/security/tns-2019-09 x_refsource_CONFIRM
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apache
Published Jul 26, 2017
Updated Aug 5, 2024
Reserved Apr 11, 2017
Link CVE-2017-7659
CISA Vulnrichment
Updated n/a