CVE-2026-102176
Junos OS: Specific packets cause SDK service crash or Routing Engine compromise when the SDK service and JDAF is enabled
Juniper Networks Junos OSNetwork & edge
CVSS
8.8HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.30%Chance of exploitation activity in the next 30 days, higher than 21% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 23.2R2-S7.7Junos OSCVE List
- 23.4R2-S8.13Junos OSCVE List
- 24.2R2-S5.5Junos OSCVE List
- 24.4R2-S5Junos OSCVE List
- 25.2R2-S2Junos OSCVE List
- 25.4R1-S3Junos OSCVE List
Show all 7 fixed versions
- 26.2R1-S2Junos OSCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the SDK service process of Juniper Networks Junos OS allows an unauthenticated network attacker to cause a denial of service or compromise the Routing Engine by sending specific packets when the SDK service and a JDAF routing instance are enabled.
Text from CVE List
Affected versions 7
- Junos OSaffected: all versions before 23.2R2-S7.7CVE List
- Junos OSaffected: 23.4 before 23.4R2-S8.13CVE List
- Junos OSaffected: 24.2 before 24.2R2-S5.5CVE List
- Junos OSaffected: 24.4 before 24.4R2-S5CVE List
- Junos OSaffected: 25.2 before 25.2R2-S2CVE List
- Junos OSaffected: 25.4 before 25.4R1-S3CVE List
- Junos OSaffected: 26.2 before 26.2R1-S2CVE List