How severe is CVE-2021-22962?

No CVSS score has been assigned to CVE-2021-22962 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2021-22962?

Affected package information for CVE-2021-22962 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2021-22962?

No fixed release is recorded for CVE-2021-22962 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

How do I detect CVE-2021-22962 in my code and dependencies?

Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

How do I mitigate CVE-2021-22962 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2021-22962 actively exploited in the wild?

No public exploit code has been indexed for CVE-2021-22962 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2021-22962?

CVE-2021-22962 has an EPSS (Exploit Prediction Scoring System) score of 91.0%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

When was CVE-2021-22962 published, and has it been updated?

CVE-2021-22962 was published on December 19, 2023 and was last updated on August 3, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

Not in CISA KEV

CVE-2021-22962

CVE-2021-22962 is a security vulnerability. EPSS puts its 30-day exploitation probability at 91.0% (100th percentile). No vendor fix is recorded yet; mitigation options are listed below.

An attacker can send a specially crafted request which could lead to leakage of sensitive data or potentially a resource-based DoS attack.

Published

Dec 19, 2023

Updated

Aug 3, 2024

Affected

1 product

Patched

See advisory

Exploits

None indexed

Exploitation data as of Oct 27, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

91.0%probability of exploitation in next 30 days

Very High Risk0.00%

Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Description

An attacker can send a specially crafted request which could lead to leakage of sensitive data or potentially a resource-based DoS attack.

Affected Products

1 product · 1 configurations

Application

avalancheivanti

< 6.4.2

range

Detection & mitigation playbook

Vulnerability

Detect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2021-22962 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

An attacker can send a specially crafted request which could lead to leakage of sensitive data or potentially a resource-based DoS attack.

O3 Security · Impact-Aware SCA

Is CVE-2021-22962 in your dependencies?

Find it across , including transitive dependencies.

Scan my dependencies How O3 SCA works

CVE-2021-22962

EPSS Exploitation Probability

Description

Affected Products

Detection & mitigation playbook

Detect

Remediation status

Mitigate without a patch

Frequently Asked Questions

Is CVE-2021-22962 in your dependencies?