NVD / CVE Program· CNA GitHub_M

CVE-2022-24834: Heap overflow issue with the Lua cjson library used by Redis

HighCVSS 8.8 · v3.1—Proof of concept Fix available

Noroxi assessment

Priority: Plan (action score 47/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 41.4% (FIRST EPSS); higher than 98.6% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: cbl2 redis 6.2.13-2 on CBL Mariner 2.0 6.2.13-2.

Add it to your regular patch cycle. Upgrade to cbl2 redis 6.2.13-2 on CBL Mariner 2.0 6.2.13-2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Redis is an in-memory database that persists on disk. A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson library, and result with heap corruption and potentially remote code execution. The problem exists in all versions of Redis with Lua scripting support, starting from 2.6, and affects only authenticated and authorized users. The problem is fixed in versions 7.0.12, 6.2.13, and 6.0.20.

Published: Jul 13, 2023
Updated: Jun 17, 2026
EPSS: 41.4% · 98th percentile
CWE: CWE-122

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Action score

Plan

Add it to your regular patch cycle.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 12 / 30 · 41.4%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 8.8
CNA · GitHub_M: 7.0; 1.8 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
redis	redis	cpe:2.3:a:redis:redis
fedoraproject	fedora	cpe:2.3:o:fedoraproject:fedora

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

redis redis
- >= 7.0.0, < 7.0.12, >= 6.2.0, < 6.2.13, >= 6.0.0, < 6.0.20affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

redis redis2.6.0 and later · before 6.0.20
redis redis6.2.0 and later · before 6.2.13
redis redis7.0.0 and later · before 7.0.12

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	redis	before 6.2.17-1.module_el8.10.0+3946+3de613d5	6.2.17-1.module_el8.10.0+3946+3de613d5
AlmaLinux:8	redis-devel	before 6.2.17-1.module_el8.10.0+3946+3de613d5	6.2.17-1.module_el8.10.0+3946+3de613d5
AlmaLinux:8	redis-doc	before 6.2.17-1.module_el8.10.0+3946+3de613d5	6.2.17-1.module_el8.10.0+3946+3de613d5
AlmaLinux:9	redis	before 6.2.17-1.el9_5	6.2.17-1.el9_5
AlmaLinux:9	redis-devel	before 6.2.17-1.el9_5	6.2.17-1.el9_5
AlmaLinux:9	redis-doc	before 6.2.17-1.el9_5	6.2.17-1.el9_5
Alpine:v3.16	redis	from 2.6.0 · before 7.0.12-r0	7.0.12-r0
Debian:11	redis	before 5:6.0.16-1+deb11u3	5:6.0.16-1+deb11u3
Debian:12	redis	before 5:7.0.15-1~deb12u1	5:7.0.15-1~deb12u1
Debian:13	redis	before 5:7.0.12-1	5:7.0.12-1
openSUSE:Leap 15.4	redis	before 6.2.6-150400.3.22.1	6.2.6-150400.3.22.1
openSUSE:Leap 15.5	redis7	before 7.0.8-150500.3.3.1	7.0.8-150500.3.3.1
openSUSE:Tumbleweed	redis	before 7.0.12-1.1	7.0.12-1.1
Red Hat:enterprise_linux:8::appstream	redis	before 0:6.2.17-1.module+el8.10.0+22680+748527fd	0:6.2.17-1.module+el8.10.0+22680+748527fd
Red Hat:enterprise_linux:8::appstream	redis-debuginfo	before 0:6.2.17-1.module+el8.10.0+22680+748527fd	0:6.2.17-1.module+el8.10.0+22680+748527fd
Red Hat:enterprise_linux:8::appstream	redis-debugsource	before 0:6.2.17-1.module+el8.10.0+22680+748527fd	0:6.2.17-1.module+el8.10.0+22680+748527fd
Red Hat:enterprise_linux:8::appstream	redis-devel	before 0:6.2.17-1.module+el8.10.0+22680+748527fd	0:6.2.17-1.module+el8.10.0+22680+748527fd
Red Hat:enterprise_linux:8::appstream	redis-doc	before 0:6.2.17-1.module+el8.10.0+22680+748527fd	0:6.2.17-1.module+el8.10.0+22680+748527fd
Red Hat:enterprise_linux:9::appstream	redis	before 0:6.2.17-1.el9_5	0:6.2.17-1.el9_5
Red Hat:enterprise_linux:9::appstream	redis-debuginfo	before 0:6.2.17-1.el9_5	0:6.2.17-1.el9_5
Red Hat:enterprise_linux:9::appstream	redis-debugsource	before 0:6.2.17-1.el9_5	0:6.2.17-1.el9_5
Red Hat:enterprise_linux:9::appstream	redis-devel	before 0:6.2.17-1.el9_5	0:6.2.17-1.el9_5
Red Hat:enterprise_linux:9::appstream	redis-doc	before 0:6.2.17-1.el9_5	0:6.2.17-1.el9_5
Rocky Linux:8	redis	before 0:6.2.17-1.module+el8.10.0+1923+5b85c6a7	0:6.2.17-1.module+el8.10.0+1923+5b85c6a7

Same product

redis: all records

Other highest-scoring records for the same primary product.

CVE-2022-0543It was discovered, that redis, a persistent key-value database, due to a packaging issue, is prone to a (Debian-specific) Lua sandbox…KEV
100Now
CVE-2025-49844Redis Lua Use-After-Free may lead to remote code execution
64This week
CVE-2023-36824Heap overflow in COMMAND GETKEYS and ACL evaluation in Redis
58Plan

Published before and after this one in the same product

← EarlierCVE-2023-28856Apr 18, 2023 · `HINCRBYFLOAT` can be used to crash a redis-server process
26Monitor
← EarlierCVE-2023-31655May 18, 2023 · redis v7.0.10 was discovered to contain a segmentation violation.
30Monitor
Later →CVE-2021-31294Jul 15, 2023 · Redis before 6cbea7d allows a replica to cause an assertion failure in a primary server by sending a non-administrative command…
23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
cbl2 redis 6.2.13-2 on CBL Mariner 2.0	6.2.13-2 · CBL-Mariner Releases	Microsoft (MSRC)
almalinux:redis	6.2.17-1.module_el8.10.0+3946+3de613d5 · AlmaLinux:8	Package registry (OSV)
almalinux:redis-devel	6.2.17-1.module_el8.10.0+3946+3de613d5 · AlmaLinux:8	Package registry (OSV)
almalinux:redis-doc	6.2.17-1.module_el8.10.0+3946+3de613d5 · AlmaLinux:8	Package registry (OSV)
alpine:redis	7.0.12-r0 · Alpine:v3.16	Package registry (OSV)
debian:redis	5:7.0.15-1~deb12u1 · Debian:12	Package registry (OSV)
opensuse:redis	6.2.6-150400.3.22.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:redis7	7.0.8-150500.3.3.1 · openSUSE:Leap 15.5	Package registry (OSV)
red hat:redis	0:6.2.17-1.module+el8.10.0+22680+748527fd · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:redis-debuginfo	0:6.2.17-1.module+el8.10.0+22680+748527fd · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:redis-debugsource	0:6.2.17-1.module+el8.10.0+22680+748527fd · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:redis-devel	0:6.2.17-1.module+el8.10.0+22680+748527fd · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:redis-doc	0:6.2.17-1.module+el8.10.0+22680+748527fd · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
rocky linux:redis	0:6.2.17-1.module+el8.10.0+1923+5b85c6a7 · Rocky Linux:8	Package registry (OSV)
suse:redis	6.2.6-150400.3.22.1 · SUSE:Linux Enterprise Module for Server Applications 15 SP4	Package registry (OSV)
suse:redis7	7.0.8-150500.3.3.1 · SUSE:Linux Enterprise Module for Server Applications 15 SP5	Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:22	2023-07-28
Proof-of-concept repository on GitHub	stars:0	2024-08-18

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedJul 13, 2023
First PoCJul 28, 2023+15 d
TodayNov 13, 2026+1219 d

Bug bounty scope

Redis VDPHackerOne · disclosure only (VDP)

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Forced Integer OverflowCAPEC-92likelihood: High · High

ATT&CK techniques

—

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/redis/redis/security/advisories/GHSA-p8x2-9v9q-c838

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: GitHub_M

CVE.org (CNA)Feb 13, 2025, 4:32 PM UTC
CISA ADPFeb 13, 2025, 4:32 PM UTC
NVDJun 17, 2026, 12:32 AM UTC
FIRST EPSSNov 12, 2026, 12:00 AM UTC
OSV / GHSANov 13, 2026, 3:18 AM UTC
MSRCNov 1, 2026, 3:25 AM UTC
PoC-in-GitHubNov 13, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.

CVE-2022-24834: Heap overflow issue with the Lua cjson library used by Redis

Noroxi assessment

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Affected systems

Is your version affected?

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Versions reported by the vendor

Affected versions

Package-level exposure

Same product

Remediation

Which version to upgrade to

Exploit status

Research context

Timeline

Technical details

Attack conditions

If successful

Attack context

References