CVE-2022-32096Network attack vector

Service interruption via oversized JWE key fields

Published Jul 13, 2022 · Updated Aug 3, 2024

Buffer overflow in Rhonabwy before 1.1.5 allows remote attackers to interrupt services by submitting a crafted JWE token. The r_jwe_aesgcm_key_unwrap function decodes attacker-controlled iv and encrypted-key fields into fixed 96-byte and 64-byte buffers without first checking their decoded lengths. Any network service that processes untrusted AES-GCM-wrapped JWE tokens through the affected library can be interrupted without authentication or user interaction.

CVSS severity7.5
High
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Rhonabwy before 1.1.5 allows remote attackers to interrupt services by submitting a crafted JWE token. The r_jwe_aesgcm_key_unwrap function decodes attacker-controlled iv and encrypted-key fields into fixed 96-byte and 64-byte buffers without first checking their decoded lengths. Any network service that processes untrusted AES-GCM-wrapped JWE tokens through the affected library can be interrupted without authentication or user interaction.

The record

CVE
CVE-2022-32096
Published
Jul 13, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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