CVE-2016-1979

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.2%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as used in Mozilla Firefox before 45.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted key data with DER encoding.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
45
EG Risk 45/100CISA 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
Severity88% × 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
2.2%
EPSS %ILE
81st
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

March 13, 2016

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated May 10, 2026
Patch available.
generic

[SECURITY] [DSA 3576-1] icedove security update

http://www.debian.org/security/2016/dsa-3576
generic
http://rhn.redhat.com/errata/RHSA-2016-0685.html
generic
http://rhn.redhat.com/errata/RHSA-2016-0684.html
generic
http://rhn.redhat.com/errata/RHSA-2016-0591.html

Vendor Advisories for CVE-2016-1979(3)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuthunderbird (1:38.8.0+build1-0ubuntu0.12.04.1) @ precise2026-05-22ubuntu
redhatnss-util-0:3.21.0-2.2.el7_22016-04-25redhat
redhatnss-0:3.21.0-6.el5_112016-04-25redhat
redhatnss-util-0:3.21.0-0.3.el6_72016-04-05redhat

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

(12 across 6 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 45.0esr-1: fixed in 45.0esr-1
—
nss—
  • every version up to 2:3.21-1: fixed in 2:3.21-1
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 45.0esr-1: fixed in 45.0esr-1
—
nss—
  • every version up to 2:3.21-1: fixed in 2:3.21-1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 45.0esr-1: fixed in 45.0esr-1
—
nss—
  • every version up to 2:3.21-1: fixed in 2:3.21-1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 45.0esr-1: fixed in 45.0esr-1
—
nss—
  • every version up to 2:3.21-1: fixed in 2:3.21-1
—
Debian:7(2)
PackageVulnerable rangeFix by version rangeDependents
icedove10.0.12-1 ... 38.7.2-1 (93 versions)
  • every version up to 38.8.0-1~deb7u1: fixed in 38.8.0-1~deb7u1
—
nss2:3.14.3-1 ... 2:3.14.5-1~bpo60+1 (9 versions)
  • every version up to 2:3.14.5-1+deb7u6: fixed in 2:3.14.5-1+deb7u6
—
Debian:8(2)
PackageVulnerable rangeFix by version rangeDependents
icedove31.6.0-1 ... 38.8.0-1~deb7u1.1 (41 versions)
  • every version up to 38.8.0-1~deb8u1: fixed in 38.8.0-1~deb8u1
—
nss2:3.17.2-1.1 ... 2:3.26-1 (19 versions)
  • every version up to 2:3.26-1+debu8u1: fixed in 2:3.26-1+debu8u1
—

Additional Vendor Advisories

(1)

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 / 20× 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 158 total refreshes for this CVE.

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

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2016-1979?
CVE-2016-1979 is a high vulnerability published on March 13, 2016. Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as used in Mozilla Firefox before 45.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted key data…
When was CVE-2016-1979 disclosed?
CVE-2016-1979 was first published on March 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-2016-1979 actively exploited?
CVE-2016-1979 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% probability of exploitation in the next 30 days (81st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2016-1979?
CVE-2016-1979 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2016-1979?
A fix for CVE-2016-1979 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2016-1979 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-1979

Explore →

Is Your Infrastructure Affected by CVE-2016-1979?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs