CVE-2016-1526

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.3%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
42
EG Risk 42/100CISA SSVC

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
Severity81% × 45%
Exploitation2% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
2.3%
EPSS %ILE
82nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

February 13, 2016

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
Patch available.
generic
http://rhn.redhat.com/errata/RHSA-2016-0695.html
generic
http://rhn.redhat.com/errata/RHSA-2016-0594.html

Vendor Advisories for CVE-2016-1526(1)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibgraphite2-doc (1.2.4-1ubuntu1.1) @ trusty2026-05-22ubuntu
redhatfirefox-0:45.1.0-1.el7_22016-04-26redhat
redhatgraphite2-0:1.3.6-1.el7_22016-04-05redhat

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

(10 across 6 ecosystems)
Debian:7(3)
PackageVulnerable rangeFix by version rangeDependents
graphite21.1.3-1 ... 1.3.4-2 (27 versions)
  • every version up to 1.3.5-1~deb7u1: fixed in 1.3.5-1~deb7u1
—
icedove10.0.12-1 ... 38.5.0-1~deb8u1 (84 versions)
  • every version up to 38.6.0-1~deb7u1: fixed in 38.6.0-1~deb7u1
—
iceweasel10.0.12esr-1 ... 38.6.0esr-1~deb8u1 (177 versions)
  • every version up to 38.6.1esr-1~deb7u1: fixed in 38.6.1esr-1~deb7u1
—
Debian:8(3)
PackageVulnerable rangeFix by version rangeDependents
graphite21.2.4-3 ... 1.3.5-1~deb7u1 (11 versions)
  • every version up to 1.3.5-1~deb8u1: fixed in 1.3.5-1~deb8u1
—
icedove31.6.0-1 ... 38.6.0-1~deb7u1 (31 versions)
  • every version up to 38.6.0-1~deb8u1: fixed in 38.6.0-1~deb8u1
—
iceweasel31.6.0esr-1 ... 38.6.1esr-1~deb7u1 (56 versions)
  • every version up to 38.6.1esr-1~deb8u1: fixed in 38.6.1esr-1~deb8u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
graphite2—
  • every version up to 1.3.5-1: fixed in 1.3.5-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
graphite2—
  • every version up to 1.3.5-1: fixed in 1.3.5-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
graphite2—
  • every version up to 1.3.5-1: fixed in 1.3.5-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
graphite2—
  • every version up to 1.3.5-1: fixed in 1.3.5-1
—

Weakness Classification(2)

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 5× in last 7d / 18× 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 148 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2016-1526?
CVE-2016-1526 is a high vulnerability published on February 13, 2016. The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds…
When was CVE-2016-1526 disclosed?
CVE-2016-1526 was first published on February 13, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-1526 actively exploited?
CVE-2016-1526 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.3% probability of exploitation in the next 30 days (82nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2016-1526?
CVE-2016-1526 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2016-1526?
A fix for CVE-2016-1526 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2016-1526 are linked in the Vendor Advisories panel on this page.

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