What is CVE-2021-0268?

CVE-2021-0268 is a high-severity vulnerability in Juniper Junos, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2021-04-22.

How severe is CVE-2021-0268?

High severity. CVSS v3 base score is 8.8 out of 10.

XSS in Juniper Junos

CVE-2021-0268

An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the int…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (53.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L.

Affected products

Juniper Junos — versions 18.1, 18.2, 18.3
Juniper Networks Junos Os — versions unspecified, 18.1, 18.2

Weakness classification (CWE)

References

sirt@juniper.net (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0268?: CVE-2021-0268 is a high-severity vulnerability in Juniper Junos, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2021-04-22.
How severe is CVE-2021-0268?: High severity. CVSS v3 base score is 8.8 out of 10.