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CVE-2022-24834

50
FAUCET Score

CVE-2022-24834 is a critical heap overflow vulnerability in Redis, specifically within the cjson library used for Lua scripting, affecting all versions with Lua scripting support from 2.6 onwards. This flaw allows authenticated and authorized attackers to achieve heap corruption and potentially remote code execution. With a CVSS score of 8.8 (HIGH), the vulnerability is easily exploitable over the network with low privileges, leading to high impact on confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, its high FAUCET Risk Score of 96/100 indicates significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.0, < 6.0.20CPE matchmatch criteria
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
>= 6.2.0, < 6.2.13CPE matchmatch criteria
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.12CPE matchmatch criteria
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
41.41%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.4141 is in the 98th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

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

Remediation

Patch Available

Vendor Patches (17)

microsoftpatch availablevia msrc
Product: cbl2 redis 6.2.13-2 on CBL Mariner 2.0Fixed in: 6.2.13-2
microsoftpatch availablevia msrc
Product: 19493-16823Fixed in: 6.2.13-2
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: redis:6-8100020250113083959.489197e6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: redis-0:6.2.17-1.el9_5
View patch
ubuntupatch availablevia ubuntu_usn
Product: redis (xenial)Fixed in: 2:3.0.6-1ubuntu0.4+esm5
ubuntupatch availablevia ubuntu_usn
Product: lua-bitop (jammy)Fixed in: 1.0.2-5ubuntu0.22.04.1~esm2
ubuntupatch availablevia ubuntu_usn
Product: lua-cjson (jammy)Fixed in: 2.1.0+dfsg-2.1ubuntu0.22.04.1~esm2
ubuntupatch availablevia ubuntu_usn
Product: lua5.1 (jammy)Fixed in: 5.1.5-8.1ubuntu0.22.04.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: redis (noble)Fixed in: 5:7.0.15-1ubuntu0.24.04.4
ubuntupatch availablevia ubuntu_usn
Product: redis (bionic)Fixed in: 5:4.0.9-1ubuntu0.2+esm7
ubuntupatch availablevia ubuntu_usn
Product: lua-bitop (focal)Fixed in: 1.0.2-5ubuntu0.20.04.1~esm2
ubuntupatch availablevia ubuntu_usn
Product: lua-cjson (focal)Fixed in: 2.1.0+dfsg-2.1ubuntu0.20.04.1~esm2
ubuntupatch availablevia ubuntu_usn
Product: lua5.1 (focal)Fixed in: 5.1.5-8.1ubuntu0.20.04.1~esm1
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-backend-container
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-redis6-redis
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-system-container

Vendor Advisories (3)

ubuntuUSN-8169-1

Redis, Lua vulnerabilities

Apr 13, 2026
microsoft2023-Jul/CVE-2022-24834Important

Heap overflow issue with the Lua cjson library used by Redis

Jul 11, 2023
redhatCVE-2022-24834Moderate

redis: heap overflow in the lua cjson and cmsgpack libraries

Jul 10, 2023

References

github.com / redis/redis/security/advisories/GHSA-p8x2-9v9q-c838
Vendor Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/MIF5MAGYARYUMRFK7PQI7HYXMK2HZE5T
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/TDNNH2ONMVNBQ6LUIAOAGDNFPKXNST5K
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20230814-0006