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CVE-2022-37035

27
FAUCET Score

CVE-2022-37035 is a high-severity use-after-free vulnerability affecting FRRouting (FRR) version 8.3's bgpd component. This flaw, stemming from a race condition in BGP packet processing, allows for potential Remote Code Execution or Information Disclosure through specially crafted BGP packets. With a CVSS score of 8.1, it can be exploited remotely without user interaction, though it has high attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
8.3CPE matchmatch criteria
cpe:2.3:a:frrouting:frrouting:8.3:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.93%
Probability of exploitation in next 30 days
EPSS Percentile
77.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0193 is in the 35th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-37035Moderate

frr: use-after-free bug due to race conditions in two threads

Aug 3, 2022

References

lists.debian.org / debian-lts-announce/2024/09/msg00007.html
docs.google.com / document/d/1TqYEcZbFeDTMKe2N4XRFwyAjw_mynIHfvzwbx1fmJj8/edit
ExploitThird Party Advisory
github.com / FRRouting/frr/issues/11698
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2024/04/msg00019.html