CVE-2021-0249 — Classic Buffer Overflow in Networks Junos OS
Severity
9.8CRITICALNVD
CNA8.1
EPSS
0.4%
top 37.81%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 22
Latest updateMay 24
Description
On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS may allow an attacker to arbitrarily execute code or commands on the target to take over or otherwise impact the device by sending crafted packets to or through the device. This issue affects: Juniper Networks Junos OS on SRX Series: 15.1X49 versions prior to 15.1X49-D190; 17.4 versions prior to 17.4R2-S9; 17.4R3 and later versions prior to 18.1R3-…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
Affected Packages2 packages
🔴Vulnerability Details
2GHSA▶
GHSA-4cwf-q6r9-gq5q: On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS↗2022-05-24
CVEList▶
Junos OS: SRX Series: A remote attacker may be able to cause a PFE buffer overflow to arbitrarily remotely execute code or commands on the target device with UTM enabled.↗2021-04-22
📋Vendor Advisories
1Juniper▶
CVE-2021-0249: On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS↗2021-04-22