CVE-2026-15551

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.5 from GitHub Security Advisory published 2026-07-13. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Integer overflow or wraparound vulnerability in Samsung Open Source rlottie allows Overflow Buffers.

This issue affects .

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 13, 2026

Last Modified

October 2, 2026

Advisory Details (1)

Auto-updated Jul 13, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
GitHub pull request

Fix heap buffer overflow from short truncation of span Y coordinate

Fix merged in Samsung/rlottie PR #595 on 2026-07-03 — awaiting tagged release

https://github.com/Samsung/rlottie/pull/595

Vendor Advisories for CVE-2026-15551(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
rlottie0.1+dfsg-2 ... 0.1+dfsg-5 (9 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
rlottie0.1+dfsg-4 ... 0.1+dfsg-5 (7 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
rlottie0.1+dfsg-4.2, 0.1+dfsg-4.2+deb13u1, 0.1+dfsg-4.2+deb13u2, 0.1+dfsg-4.3, 0.1+dfsg-5
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
rlottie0.1+dfsg-4.2, 0.1+dfsg-4.3, 0.1+dfsg-5
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 137 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 37 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-10-12 16:31 UTCEG score recompute
  4. 2026-10-11 20:10 UTCEG score recompute
  5. 2026-10-11 17:22 UTCEG score recompute
  6. 2026-10-11 14:55 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-02 15:03 UTCEG score recompute
  17. 2026-10-02 15:03 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-01 14:48 UTCEG score recompute
  20. 2026-10-01 14:48 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  21. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-09-28 09:39 UTCEG score recompute
  23. 2026-09-28 09:39 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  24. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 1st percentile
Show 75 more
  1. 2026-09-24 10:17 UTCEG score recompute
  2. 2026-09-24 10:17 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  3. 2026-09-23 05:36 UTCEG score recompute
  4. 2026-09-23 05:36 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  5. 2026-09-18 05:09 UTCEG score recompute
  6. 2026-09-18 05:09 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  7. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-09-14 10:27 UTCEG score recompute
  9. 2026-09-14 10:27 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  10. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-09-13 08:05 UTCEG score recompute
  12. 2026-09-13 08:05 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  13. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-09-12 02:00 UTCEG score recompute
  15. 2026-09-12 02:00 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  16. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-09-08 02:16 UTCEG score recompute
  21. 2026-09-08 02:16 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  22. 2026-09-08 02:14 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  23. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-09-05 21:32 UTCEG score recompute
  25. 2026-09-05 21:32 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  26. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  27. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  28. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  29. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  30. 2026-08-30 05:43 UTCEG score recompute
  31. 2026-08-30 05:43 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  32. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  33. 2026-08-28 02:37 UTCEG score recompute
  34. 2026-08-28 02:37 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  35. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-08-27 00:19 UTCEG score recompute
  37. 2026-08-27 00:19 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  38. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  39. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  40. 2026-08-25 12:42 UTCEG score recompute
  41. 2026-08-25 12:42 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  42. 2026-08-24 10:12 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  43. 2026-08-23 08:02 UTCEG score recompute
  44. 2026-08-23 08:02 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  45. 2026-08-23 00:19 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  46. 2026-08-22 05:52 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  47. 2026-08-21 03:41 UTCEG score recompute
  48. 2026-08-21 03:41 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  49. 2026-08-20 22:55 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  50. 2026-08-20 01:24 UTCEG score recompute
  51. 2026-08-20 01:24 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  52. 2026-08-19 17:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  53. 2026-08-18 20:30 UTCEG score recompute
  54. 2026-08-18 20:30 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  55. 2026-08-18 13:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  56. 2026-08-17 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  57. 2026-08-17 11:59 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  58. 2026-08-16 09:49 UTCEG score recompute
  59. 2026-08-16 09:49 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  60. 2026-08-16 02:14 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  61. 2026-08-15 07:40 UTCEG score recompute
  62. 2026-08-15 07:40 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  63. 2026-08-15 01:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  64. 2026-08-14 04:03 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  65. 2026-08-13 01:53 UTCEG score recompute
  66. 2026-08-13 01:53 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  67. 2026-08-11 23:43 UTCEG score recompute
  68. 2026-08-11 23:43 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  69. 2026-08-11 13:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  70. 2026-08-10 21:33 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  71. 2026-08-09 19:22 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  72. 2026-08-08 17:12 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  73. 2026-08-07 15:02 UTCEG score recompute
  74. 2026-08-07 15:02 UTCGHSA enrichmentGHSA-h37q-3gh3-x72p · GitHub CVSS 5.5
  75. 2026-08-06 13:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-15551?
CVE-2026-15551 is a medium-severity vulnerability; its CVE record was published on July 13, 2026. Integer overflow or wraparound vulnerability in Samsung Open Source rlottie allows Overflow Buffers. This issue affects .
When was the CVE record for CVE-2026-15551 published?
The CVE record for CVE-2026-15551 was published on July 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 2, 2026; the record at its source may have been updated since.
Is CVE-2026-15551 actively exploited?
CVE-2026-15551 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15551?
CVE-2026-15551 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15551?
An upstream fix for CVE-2026-15551 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-15551 are linked in the Vendor Advisories panel on this page.

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