CVE-2026-25243

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 3.3%, top 12% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 8.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

May 5, 2026

Last Modified

July 25, 2026

Advisory Details (2)

Auto-updated May 5, 2026
Patch available. Sources: github.
github Patch Available

Invalid Memory Access in Redis RESTORE Command May Lead to Remote Code Execution · Advisory · redis/redis · GitHub

https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4
generic

Release 8.6.3 · redis/redis · GitHub

https://github.com/redis/redis/releases/tag/8.6.3

Vendor Advisories for CVE-2026-25243(14)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatredis:6-8080020260626132343.63b345852026-06-30redhat
redhatredis:6-8060020260623095617.ad008a3a2026-06-25redhat
redhatredis-0:6.2.7-1.el9_4.62026-06-23redhat
redhatredis:7-9040020260618054637.92026-06-23redhat
redhatredis:6-8040020260618162855.522a0ee42026-06-22redhat
redhatredis-0:6.2.7-1.el9_2.62026-06-22redhat
redhatvalkey-0:8.0.9-1.el10_02026-06-17redhat
redhatredis:7-9060020260602115714.92026-06-16redhat
redhatredis-0:6.2.22-1.el9_62026-06-16redhat
redhatvalkey-0:8.0.9-1.el9_82026-06-15redhat
redhatredis:6-8100020260522105353.489197e62026-06-15redhat
redhatredis:7-9080020260521083756.92026-06-11redhat
redhatvalkey-0:8.0.9-1.el10_22026-06-11redhat
redhatredis-0:6.2.22-1.el9_82026-06-04redhat
redhatvalkey-main-9.0.4-0.1.hum12026-05-06redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(8 across 8 ecosystems)
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
valkey—7.2.13-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
valkey—7.2.13-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
valkey—8.1.7-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
valkey—9.0.4-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
valkey—9.0.4-r0—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
redis5:7.0.11-1 ... 5:7.0.15-1~deb12u7 (15 versions)5:7.0.15-1~deb12u8—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
redis5:8.0.2-3 ... 5:8.6.3-1 (11 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
redis5:8.0.2-3 ... 5:8.6.3-1 (9 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× in last 7d / 55× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 215 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:11 UTCEPSS rescore
  3. 2026-09-01 13:53 UTCEPSS rescore
  4. 2026-09-01 04:39 UTCEPSS rescore
  5. 2026-08-30 19:17 UTCEPSS rescore
  6. 2026-08-30 01:22 UTCEPSS rescore
  7. 2026-08-28 21:41 UTCEPSS rescore
  8. 2026-08-27 14:25 UTCEPSS rescore
  9. 2026-08-26 14:46 UTCEPSS rescore
  10. 2026-08-25 13:48 UTCEPSS rescore
  11. 2026-08-23 20:44 UTCEG score recompute
  12. 2026-08-23 20:44 UTCVendor advisory
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-20 22:55 UTCEPSS rescore
  16. 2026-08-19 17:03 UTCEPSS rescore
  17. 2026-08-18 13:48 UTCEPSS rescore
  18. 2026-08-17 13:47 UTCEPSS rescore
  19. 2026-08-17 13:02 UTCEG score recompute
  20. 2026-08-17 13:02 UTCVendor advisory
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 04:59 UTCEG score recompute
  23. 2026-08-16 04:59 UTCVendor advisory
  24. 2026-08-16 02:14 UTCEPSS rescore
  25. 2026-08-15 02:04 UTCEG score recompute
Show 75 more
  1. 2026-08-15 02:04 UTCVendor advisory
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 14:49 UTCVendor advisory
  4. 2026-08-14 03:34 UTCEG score recompute
  5. 2026-08-14 03:34 UTCVendor advisory
  6. 2026-08-13 22:00 UTCEPSS rescore
  7. 2026-08-13 04:26 UTCVendor advisory
  8. 2026-08-12 17:11 UTCEG score recompute
  9. 2026-08-12 17:11 UTCVendor advisory
  10. 2026-08-12 13:50 UTCEPSS rescore
  11. 2026-08-11 16:02 UTCEG score recompute
  12. 2026-08-11 16:02 UTCVendor advisory
  13. 2026-08-11 13:42 UTCEPSS rescore
  14. 2026-08-11 01:36 UTCEG score recompute
  15. 2026-08-11 01:36 UTCVendor advisory
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 12:45 UTCVendor advisory
  18. 2026-08-10 01:10 UTCVendor advisory
  19. 2026-08-09 13:55 UTCVendor advisory
  20. 2026-08-09 02:40 UTCEG score recompute
  21. 2026-08-09 02:40 UTCVendor advisory
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-08 09:48 UTCVendor advisory
  24. 2026-08-07 22:33 UTCEG score recompute
  25. 2026-08-07 22:33 UTCVendor advisory
  26. 2026-08-07 11:19 UTCVendor advisory
  27. 2026-08-06 20:55 UTCEG score recompute
  28. 2026-08-06 20:55 UTCVendor advisory
  29. 2026-08-06 13:46 UTCEPSS rescore
  30. 2026-08-06 09:40 UTCVendor advisory
  31. 2026-08-05 22:25 UTCEG score recompute
  32. 2026-08-05 22:25 UTCVendor advisory
  33. 2026-08-05 19:17 UTCEPSS rescore
  34. 2026-08-04 15:10 UTCEPSS rescore
  35. 2026-08-03 19:57 UTCEG score recompute
  36. 2026-08-03 19:57 UTCVendor advisory
  37. 2026-08-03 10:36 UTCEPSS rescore
  38. 2026-08-03 04:01 UTCVendor advisory
  39. 2026-08-02 16:32 UTCVendor advisory
  40. 2026-08-02 05:16 UTCEG score recompute
  41. 2026-08-02 05:16 UTCVendor advisory
  42. 2026-08-02 02:26 UTCEPSS rescore
  43. 2026-08-01 04:16 UTCEPSS rescore
  44. 2026-07-30 16:27 UTCEPSS rescore
  45. 2026-07-30 01:30 UTCEPSS rescore
  46. 2026-07-28 15:36 UTCEPSS rescore
  47. 2026-07-27 14:13 UTCEPSS rescore
  48. 2026-07-26 14:54 UTCEPSS rescore
  49. 2026-07-26 14:54 UTCEPSS rescore
  50. 2026-07-26 08:32 UTCEG score recompute
  51. 2026-07-26 08:32 UTCVendor advisory
  52. 2026-07-25 14:17 UTCEPSS rescore
  53. 2026-07-25 14:17 UTCEPSS rescore
  54. 2026-07-24 14:17 UTCEPSS rescore
  55. 2026-07-23 14:18 UTCEPSS rescore
  56. 2026-07-23 14:18 UTCEPSS rescore
  57. 2026-07-23 03:07 UTCEG score recompute
  58. 2026-07-22 14:08 UTCEPSS rescore
  59. 2026-07-21 15:24 UTCEPSS rescore
  60. 2026-07-21 15:24 UTCEPSS rescore
  61. 2026-07-20 22:32 UTCOSV refresh
  62. 2026-07-20 17:08 UTCEPSS rescore
  63. 2026-07-19 14:31 UTCEPSS rescore
  64. 2026-07-19 14:31 UTCEPSS rescore
  65. 2026-07-19 02:29 UTCEPSS rescore
  66. 2026-07-19 02:28 UTCEPSS rescore
  67. 2026-07-18 10:04 UTCEPSS rescore
  68. 2026-07-18 10:04 UTCEPSS rescore
  69. 2026-07-16 17:03 UTCEPSS rescore
  70. 2026-07-16 17:03 UTCEPSS rescore
  71. 2026-07-15 16:57 UTCEPSS rescore
  72. 2026-07-15 16:57 UTCEPSS rescore
  73. 2026-07-15 02:00 UTCEPSS rescore
  74. 2026-07-15 02:00 UTCEPSS rescore
  75. 2026-07-13 22:30 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCdinosn/CVE-2026-25243-debugfree
    First seen Jul 2, 2026
    Open source ↗
  • GitHub PoCdinosn/CVE-2026-25243
    First seen Jun 13, 2026

    CVE-2026-25243 — Redis RESTORE zipmap double-free → remote code execution (ASLR on).

    Open source ↗

Frequently asked(5)

What is CVE-2026-25243?
CVE-2026-25243 is a high vulnerability published on May 5, 2026. Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may…
When was CVE-2026-25243 disclosed?
CVE-2026-25243 was first published in the National Vulnerability Database on May 5, 2026, with the most recent update on July 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25243 actively exploited?
CVE-2026-25243 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.1% of all scored CVEs.
What is the CVSS score of CVE-2026-25243?
CVE-2026-25243 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-25243?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25243, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-25243

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