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CVE Record

CVE-2022-37035: An issue was discovered in bgpd in FRRouting (FRR) 8.3.

An issue was discovered in bgpd in FRRouting (FRR) 8.3. In bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c, there is a possible use-after-free due to a race condition. This could lead to Remote Code Execution or Information Disclosure by sending crafted BGP packets. User interaction is not needed for exploitation.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

FRRouting bgpd 8.3 has a race-condition use-after-free that may let crafted BGP packets cause remote code execution or information disclosure. This matters most for organizations using FRR to run routing services, because compromise or instability in bgpd can affect network control-plane trust.

Executive priority

Treat this as a high-priority routing infrastructure issue if FRRouting bgpd 8.3 is in use. Prioritize identification and vendor-supported updates, especially on internet-facing or partner-facing routing systems.

Technical view

The reported flaw is in bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c. The CVE description identifies a race-condition use-after-free reachable through crafted BGP packets, with no user interaction required, and possible outcomes of remote code execution or information disclosure.

Likely exposure

Exposure is likely limited to systems running FRRouting FRR 8.3 bgpd, including downstream packaged frr deployments where the distributor advisory applies. Risk depends on whether bgpd can receive BGP packets from peers or less-trusted networks.

Exploitation context

The provided bundle does not show CISA KEV listing or any cited evidence of active exploitation. The CVE states exploitation does not require user interaction and is triggered by crafted BGP packets, but it does not provide reliable exploit prevalence details.

Researcher notes

Evidence is strongest for the vulnerable functions, bug class, no-user-interaction condition, and possible RCE or information disclosure impact. The bundle lacks CVSS, CWE, exact fixed upstream version, and public exploitation evidence, so validation should stay source-bound.

Mitigation direction

  • Identify FRRouting bgpd deployments and confirm whether FRR 8.3 is present.
  • Apply FRRouting or distribution frr security updates that address CVE-2022-37035.
  • Check Debian LTS advisories if using Debian-packaged frr.
  • Limit BGP packet reachability to expected trusted peers where operationally possible.
  • Monitor bgpd crashes, restarts, and unusual BGP session behavior.

Validation and detection

  • Inventory FRR versions on routers, route servers, and network appliances.
  • Confirm whether bgpd is enabled and handling BGP sessions.
  • Review package changelogs or advisories for CVE-2022-37035 coverage.
  • Verify update deployment in staging before production routing changes.
  • Check logs for bgpd instability around BGP session activity.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2022-37035 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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