CVE-2026-78977

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
6.5EG
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: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Uninitialized resource in GPU in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Low)

CVSS v3
6.5
Vendor severity
LOWper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Low)
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0% × 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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
26th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

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

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
Patch available.
generic

Chromium

https://issues.chromium.org/issues/516864349
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html

Vendor Advisories for CVE-2026-78977(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
chromium113.0.5672.126-1 ... 152.0.7977.64-1 (412 versions)
  • every version up to 152.0.7977.75-1~deb12u1: fixed in 152.0.7977.75-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb12u1 (178 versions)
  • every version up to 152.0.7977.75-1~deb13u1: fixed in 152.0.7977.75-1~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (176 versions)
  • every version up to 152.0.7977.64-1: fixed in 152.0.7977.64-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 108× 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 99 of 170 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 71 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  2. 2026-10-10 11:15 UTCEG score recompute
  3. 2026-10-10 11:15 UTCVendor advisory
  4. 2026-10-10 11:15 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  5. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  6. 2026-10-09 03:49 UTCEG score recompute
  7. 2026-10-09 03:49 UTCVendor advisory
  8. 2026-10-09 03:49 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  9. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  10. 2026-10-08 02:21 UTCEG score recompute
  11. 2026-10-08 02:21 UTCVendor advisory
  12. 2026-10-08 02:21 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  14. 2026-10-07 02:11 UTCEG score recompute
  15. 2026-10-07 02:11 UTCVendor advisory
  16. 2026-10-07 02:11 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  17. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  18. 2026-10-06 02:46 UTCEG score recompute
  19. 2026-10-06 02:46 UTCVendor advisory
  20. 2026-10-06 02:46 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  22. 2026-10-05 03:46 UTCEG score recompute
  23. 2026-10-05 03:46 UTCVendor advisory
  24. 2026-10-05 03:46 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  25. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 25th percentile
Show 74 more
  1. 2026-10-04 04:24 UTCEG score recompute
  2. 2026-10-04 04:24 UTCVendor advisory
  3. 2026-10-04 04:24 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  4. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  5. 2026-10-03 05:25 UTCEG score recompute
  6. 2026-10-03 05:25 UTCVendor advisory
  7. 2026-10-03 05:25 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  8. 2026-10-02 06:25 UTCEG score recompute
  9. 2026-10-02 06:25 UTCVendor advisory
  10. 2026-10-02 06:25 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  11. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  12. 2026-10-01 05:35 UTCEG score recompute
  13. 2026-10-01 05:35 UTCVendor advisory
  14. 2026-10-01 05:35 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  15. 2026-09-30 06:26 UTCEG score recompute
  16. 2026-09-30 06:26 UTCVendor advisory
  17. 2026-09-30 06:26 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  18. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  19. 2026-09-28 21:25 UTCEG score recompute
  20. 2026-09-28 21:25 UTCVendor advisory
  21. 2026-09-28 21:25 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  22. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  23. 2026-09-27 20:42 UTCEG score recompute
  24. 2026-09-27 20:42 UTCVendor advisory
  25. 2026-09-27 20:42 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  26. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  27. 2026-09-26 21:43 UTCEG score recompute
  28. 2026-09-26 21:43 UTCVendor advisory
  29. 2026-09-26 21:42 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  30. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  31. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  32. 2026-09-24 19:31 UTCEG score recompute
  33. 2026-09-24 19:31 UTCVendor advisory
  34. 2026-09-24 19:31 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  35. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  36. 2026-09-23 20:32 UTCEG score recompute
  37. 2026-09-23 20:32 UTCVendor advisory
  38. 2026-09-23 20:32 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  39. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  40. 2026-09-22 21:33 UTCEG score recompute
  41. 2026-09-22 21:33 UTCVendor advisory
  42. 2026-09-22 21:33 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  43. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  44. 2026-09-21 22:34 UTCEG score recompute
  45. 2026-09-21 22:34 UTCVendor advisory
  46. 2026-09-21 22:34 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  47. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  48. 2026-09-20 23:35 UTCEG score recompute
  49. 2026-09-20 23:35 UTCVendor advisory
  50. 2026-09-20 23:35 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  51. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  52. 2026-09-20 00:35 UTCEG score recompute
  53. 2026-09-20 00:35 UTCVendor advisory
  54. 2026-09-20 00:35 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  55. 2026-09-19 01:36 UTCEG score recompute
  56. 2026-09-19 01:36 UTCVendor advisory
  57. 2026-09-19 01:35 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  58. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  59. 2026-09-18 02:36 UTCEG score recompute
  60. 2026-09-18 02:36 UTCVendor advisory
  61. 2026-09-18 02:36 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  62. 2026-09-17 03:37 UTCEG score recompute
  63. 2026-09-17 03:37 UTCVendor advisory
  64. 2026-09-17 03:37 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  65. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  66. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  67. 2026-09-16 04:37 UTCVendor advisory
  68. 2026-09-16 04:37 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  69. 2026-09-15 05:38 UTCEG score recompute
  70. 2026-09-15 05:38 UTCVendor advisory
  71. 2026-09-15 05:38 UTCGHSA enrichmentGHSA-q287-g725-23jg · GitHub CVSS 6.5
  72. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  73. 2026-09-14 05:51 UTCEG score recompute
  74. 2026-09-14 05:51 UTCVendor advisory

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78977?
CVE-2026-78977 is a medium vulnerability published on August 25, 2026. Uninitialized resource in GPU in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
When was the CVE record for CVE-2026-78977 published?
The CVE record for CVE-2026-78977 was published on August 25, 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 August 27, 2026; the record at its source may have been updated since.
Is CVE-2026-78977 actively exploited?
CVE-2026-78977 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78977?
CVE-2026-78977 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78977?
A fix for CVE-2026-78977 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-78977 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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