Vulnerability · Published May 1, 2026 · Assigned by oracle
CVE-2026-21996
Low 3.3
In plain English
A low-severity security flaw in Oracle Linux from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuild_file_symtab()
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | dtrace | 2.0.7-1 | DEBIAN-CVE-2026-21996 |
| Ubuntu:26.04:LTS | dtrace | no fix listed | UBUNTU-CVE-2026-21996 |
| Ubuntu:26.10 | dtrace | no fix listed | UBUNTU-CVE-2026-21996 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | Oracle Linux | 8910 |
Weakness: CWE-369 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References
- Oracle Advisory vendor-advisory