CVE-2026-35233 json
An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range sh_link field.
published 2026-05-01 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-26702
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
Summary
An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range sh_link field. When root-level dtrace attaches to -- or instruments -- that process (via dtrace -p , pid probes, or USDT), the ELF parser reads heap memory beyond the allocated section cache array without any bounds check. This results in an uninitialized/out-of-bounds heap read that can cause a NULL pointer dereference crash of the dtrace process (DoS), or -- depending on heap layout -- a read-then-use of a garbage pointer controlled by adjacent allocations, providing a foothold toward further exploitation in a privileged context.
Patch / fix
- dtrace Debian 14 2.0.7-1
debian advisories DEBIAN-CVE-2026-35233
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
Affected products
- Oracle Corporation Oracle Linux
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
linux.oracle.com
/cve/CVE-2026-35233.html
vendor-advisory
Sources
- CVE List CVE-2026-35233
- NVD CVE-2026-35233
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