CVE-2026-6844
Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
CVE-2026-6844- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-06
EUVDEUVD-2026-24710
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
EUVD-2026-24710- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-p33j-xffm-gxj7
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit...
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
GHSA-p33j-xffm-gxj7- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
CVE-2026-6844- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-06
OSV
Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
CVE-2026-6844- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-07
OSVDEBIAN-CVE-2026-6844
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
DEBIAN-CVE-2026-6844- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
OSVUBUNTU-CVE-2026-6844
A flaw was found in the readelf utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the readelf utility becoming unresponsive or crashing, leading to a denial of service.
- Record
UBUNTU-CVE-2026-6844- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVCLSA-2026-1790167629 No score
binutils: Fix of CVE-2026-6844
- CVE-2026-6844: readelf denial of service from malformed section headers
- Record
CLSA-2026-1790167629- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
binutilsTuxCare:AlmaLinux:9.2 |
before 2.35.2-37.el9.tuxcare.els15 | 2.35.2-37.el9.tuxcare.els15 |
binutils-develTuxCare:AlmaLinux:9.2 |
before 2.35.2-37.el9.tuxcare.els15 | 2.35.2-37.el9.tuxcare.els15 |
binutils-goldTuxCare:AlmaLinux:9.2 |
before 2.35.2-37.el9.tuxcare.els15 | 2.35.2-37.el9.tuxcare.els15 |
cross-binutils-aarch64TuxCare:AlmaLinux:9.2 |
before 2.35.2-37.el9.tuxcare.els15 | 2.35.2-37.el9.tuxcare.els15 |
cross-binutils-ppc64leTuxCare:AlmaLinux:9.2 |
before 2.35.2-37.el9.tuxcare.els15 | 2.35.2-37.el9.tuxcare.els15 |
cross-binutils-s390xTuxCare:AlmaLinux:9.2 |
before 2.35.2-37.el9.tuxcare.els15 | 2.35.2-37.el9.tuxcare.els15 |
binutilsDebian:12 |
All versions, plus listed versions 2.40-22.40.50.20230111-12.40.50.20230215-12.40.50.20230501-12.40.50.20230510-1 Show 45 moreShow less2.40.50.20230602-12.40.50.20230611-12.40.50.20230611-22.40.50.20230622-12.40.50.20230625-12.40.50.20230630-12.40.90.20230705-12.40.90.20230714-12.40.90.20230714-22.40.90.20230720-12.40.90.20230729-12.40.90.20230729-22.41-12.41-22.41-32.41-42.41-52.41-62.41-72.41.50.20230731-12.41.50.20230803-12.41.50.20230905-12.41.50.20231010-12.41.50.20231101-12.41.50.20231125-12.41.50.20231202-12.41.50.20231206-12.41.50.20231214-12.41.50.20231227-12.41.90.20240115-12.41.90.20240122-12.42-12.42-22.42-2+hurd.12.42-32.42-42.42.50.20240614-12.42.50.20240618-12.42.50.20240625-12.42.50.20240710-12.42.90.20240720-12.42.90.20240720-22.43-12.43-22.43.1-1 |
None known |
binutilsDebian:13 |
All versions, plus listed versions 2.44-32.44.50.20250201-12.44.50.20250207-12.44.50.20250218-12.44.50.20250218-2 Show 45 moreShow less2.44.50.20250309-12.44.50.20250405-12.44.50.20250502-12.44.50.20250520-12.44.50.20250528-12.44.50.20250707-12.44.90.20250719-12.45-12.45-22.45-32.45-42.45-52.45-62.45-72.45-82.45.50.20250813-12.45.50.20250903-12.45.50.20251005-12.45.50.20251023-12.45.50.20251023-22.45.50.20251122-12.45.50.20251125-12.45.50.20251201-12.45.50.20251209-12.45.50.20260116-12.45.50.20260119-12.45.90.20260125-12.45.90.20260201-12.46-12.46-22.46-32.46.50.20260216-12.46.50.20260509-12.46.50.20260519-12.46.50.20260608-12.46.50.20260617-12.46.90.20260712-12.47-12.47-22.47-32.47-42.47-52.47-62.47.50.20260813-12.47.50.20260813-2 |
None known |
binutilsDebian:14 |
All versions, plus listed versions 2.44-32.44.50.20250201-12.44.50.20250207-12.44.50.20250218-12.44.50.20250218-2 Show 45 moreShow less2.44.50.20250309-12.44.50.20250405-12.44.50.20250502-12.44.50.20250520-12.44.50.20250528-12.44.50.20250707-12.44.90.20250719-12.45-12.45-22.45-32.45-42.45-52.45-62.45-72.45-82.45.50.20250813-12.45.50.20250903-12.45.50.20251005-12.45.50.20251023-12.45.50.20251023-22.45.50.20251122-12.45.50.20251125-12.45.50.20251201-12.45.50.20251209-12.45.50.20260116-12.45.50.20260119-12.45.90.20260125-12.45.90.20260201-12.46-12.46-22.46-32.46.50.20260216-12.46.50.20260509-12.46.50.20260519-12.46.50.20260608-12.46.50.20260617-12.46.90.20260712-12.47-12.47-22.47-32.47-42.47-52.47-62.47.50.20260813-12.47.50.20260813-2 |
None known |
binutilsUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 2.23.52.20130913-0ubuntu12.23.90.20131017-1ubuntu12.23.90.20131116-1ubuntu12.23.91.20131123-1ubuntu12.24-1ubuntu1 Show 20 moreShow less2.24-1ubuntu22.24-2ubuntu12.24-2ubuntu22.24-2ubuntu32.24-4ubuntu12.24-5ubuntu12.24-5ubuntu22.24-5ubuntu32.24-5ubuntu3.12.24-5ubuntu132.24-5ubuntu142.24-5ubuntu14.12.24-5ubuntu14.22.24-5ubuntu14.2+esm12.24-5ubuntu14.2+esm22.24-5ubuntu14.2+esm32.24-5ubuntu14.2+esm52.24-5ubuntu14.2+esm62.24-5ubuntu14.2+esm72.24-5ubuntu14.2+esm8 |
None known |
Show 8 moreShow less
| Package | Affected | Fixed |
|---|---|---|
binutilsUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 2.25.1-6ubuntu12.25.51.20151022-0ubuntu22.25.51.20151022-0ubuntu32.25.51.20151027-0ubuntu12.25.51.20151028-0ubuntu1 Show 37 moreShow less2.25.51.20151106-0ubuntu12.25.51.20151113-1ubuntu12.25.51.20151113-2ubuntu12.25.90.20151125-1ubuntu12.25.90.20151125-2ubuntu12.25.90.20151211-0ubuntu12.25.90.20151211-0ubuntu22.25.90.20160101-1ubuntu12.25.90.20160101-1ubuntu22.26-2ubuntu12.26-3ubuntu12.26-4ubuntu12.26-5ubuntu12.26-6ubuntu12.26-7ubuntu22.26-8ubuntu12.26-8ubuntu22.26-8ubuntu2.12.26.1-1ubuntu1~16.042.26.1-1ubuntu1~16.04.12.26.1-1ubuntu1~16.04.32.26.1-1ubuntu1~16.04.42.26.1-1ubuntu1~16.04.52.26.1-1ubuntu1~16.04.62.26.1-1ubuntu1~16.04.72.26.1-1ubuntu1~16.04.82.26.1-1ubuntu1~16.04.8+esm12.26.1-1ubuntu1~16.04.8+esm32.26.1-1ubuntu1~16.04.8+esm42.26.1-1ubuntu1~16.04.8+esm52.26.1-1ubuntu1~16.04.8+esm62.26.1-1ubuntu1~16.04.8+esm72.26.1-1ubuntu1~16.04.8+esm92.26.1-1ubuntu1~16.04.8+esm112.26.1-1ubuntu1~16.04.8+esm122.26.1-1ubuntu1~16.04.8+esm132.26.1-1ubuntu1~16.04.8+esm14 |
None known |
binutilsUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 2.29.1-4ubuntu12.29.1-6ubuntu12.29.1-7ubuntu12.29.1-8ubuntu12.29.1-10ubuntu1 Show 25 moreShow less2.29.1-12ubuntu12.30-4ubuntu12.30-5ubuntu12.30-7ubuntu12.30-8ubuntu12.30-9ubuntu12.30-10ubuntu12.30-11ubuntu12.30-14ubuntu22.30-15ubuntu12.30-20ubuntu2~18.042.30-21ubuntu1~18.042.30-21ubuntu1~18.04.12.30-21ubuntu1~18.04.22.30-21ubuntu1~18.04.32.30-21ubuntu1~18.04.42.30-21ubuntu1~18.04.52.30-21ubuntu1~18.04.72.30-21ubuntu1~18.04.82.30-21ubuntu1~18.04.92.30-21ubuntu1~18.04.9+esm12.30-21ubuntu1~18.04.9+esm32.30-21ubuntu1~18.04.9+esm42.30-21ubuntu1~18.04.9+esm52.30-21ubuntu1~18.04.9+esm13 |
None known |
binutilsUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 2.33-2ubuntu12.33.1-1ubuntu12.33.1-5ubuntu12.33.1-6ubuntu12.33.1-6ubuntu3 Show 18 moreShow less2.33.90.20200122-1ubuntu22.34-1ubuntu12.34-3ubuntu12.34-4ubuntu12.34-5ubuntu12.34-6ubuntu12.34-6ubuntu1.12.34-6ubuntu1.32.34-6ubuntu1.42.34-6ubuntu1.52.34-6ubuntu1.62.34-6ubuntu1.72.34-6ubuntu1.82.34-6ubuntu1.92.34-6ubuntu1.102.34-6ubuntu1.112.34-6ubuntu1.11+esm12.34-6ubuntu1.11+esm2 |
None known |
binutilsUbuntu:22.04:LTS |
All versions, plus listed versions 2.37-7ubuntu12.37-9ubuntu12.37-10ubuntu12.37.50.20220106-2ubuntu12.37.90.20220126-0ubuntu1 Show 16 moreShow less2.37.90.20220130-0ubuntu22.38-1ubuntu12.38-2ubuntu12.38-3ubuntu12.38-4ubuntu22.38-4ubuntu2.12.38-4ubuntu2.22.38-4ubuntu2.32.38-4ubuntu2.42.38-4ubuntu2.52.38-4ubuntu2.62.38-4ubuntu2.72.38-4ubuntu2.82.38-4ubuntu2.102.38-4ubuntu2.112.38-4ubuntu2.12 |
None known |
binutilsUbuntu:24.04:LTS |
All versions, plus listed versions 2.41-5ubuntu12.41-6ubuntu12.41.50.20231206-1ubuntu12.41.50.20231214-1ubuntu12.41.50.20231227-1ubuntu1 Show 12 moreShow less2.41.90.20240122-1ubuntu12.42-2ubuntu12.42-3ubuntu12.42-4ubuntu12.42-4ubuntu22.42-4ubuntu2.32.42-4ubuntu2.42.42-4ubuntu2.52.42-4ubuntu2.62.42-4ubuntu2.72.42-4ubuntu2.82.42-4ubuntu2.10 |
None known |
binutilsUbuntu:25.10 |
All versions, plus listed versions 2.44-3ubuntu12.44.50.20250602-0ubuntu12.44.50.20250604-0ubuntu22.44.50.20250616-0ubuntu12.44.50.20250707-1ubuntu1 Show 6 moreShow less2.45-1ubuntu12.45-3ubuntu32.45-6ubuntu12.45-7ubuntu12.45-7ubuntu1.12.45-7ubuntu1.2 |
None known |
binutilsUbuntu:26.10 |
All versions, plus listed versions 2.46-3ubuntu22.46.50.20260608-1ubuntu12.47-2ubuntu12.47-6ubuntu1 |
None known |
binutilsUbuntu:26.04:LTS |
All versions, plus listed versions 2.45-7ubuntu12.45-7ubuntu22.45-8ubuntu12.45.50.20251125-1ubuntu12.45.50.20251201-1ubuntu1 Show 6 moreShow less2.45.50.20251209-1ubuntu12.45.50.20260119-1ubuntu12.46-1ubuntu12.46-2ubuntu12.46-3ubuntu12.46-3ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| products | CVE List, EUVD, NVD | |
| facts | CVE List | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-6844 is a medium vulnerability (CVSS 5.5) in Gnu Binutils, published April 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 1st percentile. Fixed in binutils 2.35.2-37.el9.tuxcare.els15.
References
Left out here: 89 versions. The JSON record has them.