SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-12256

Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component.

CRITICAL 9.8EPSS 26.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 26.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. There is an IPNET security vulnerability: Stack overflow in the parsing of IPv4 packets’ IP options.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
26.83% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-120
Affected
windriver/vxworks · netapp/e-series santricity os controller · sonicwall/sonicos · siemens/siprotec 5 firmware · siemens/power meter 9410 firmware · siemens/power meter 9810 firmware · siemens/ruggedcom win7000 firmware · siemens/ruggedcom win7018 firmware · siemens/ruggedcom win7025 firmware · siemens/ruggedcom win7200 firmware · belden/hirschmann hios · belden/garrettcom magnum dx940e firmware
Source
cve@mitre.org
EPSS trend
0%15%30%27 October 2026: 26.83%27 October 202627 October 2026

EPSS 26.8% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.