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NVD / CVE Program· CNA mozilla

CVE-2016-2839: Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 on Linux make cairo _cairo_surface_get_extents calls that do not properly…

MediumCVSS 6.5 · v3.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.7% (FIRST EPSS); higher than 78.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: MozillaFirefox (SUSE:Linux Enterprise Desktop 12 SP1) 45.3.0esr-78.1; firefox-fontconfig (SUSE:Linux Enterprise Server 11 SP2-LTSS) 2.11.0-4.2; mozilla-nspr (SUSE:Linux Enterprise Server 11 SP2-LTSS) 4.12-25.2.

Low priority for now. Upgrade to MozillaFirefox (SUSE:Linux Enterprise Desktop 12 SP1) 45.3.0esr-78.1; firefox-fontconfig (SUSE:Linux Enterprise Server 11 SP2-LTSS) 2.11.0-4.2; mozilla-nspr (SUSE:Linux Enterprise Server 11 SP2-LTSS) 4.12-25.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 on Linux make cairo _cairo_surface_get_extents calls that do not properly interact with libav header allocation in FFmpeg 0.10, which allows remote attackers to cause a denial of service (application crash) via a crafted video.

Published
Aug 4, 2016
Updated
Jun 16, 2026
EPSS
1.7% · 78th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.7%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2016-2839

When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
ffmpegffmpeg
mozillafirefox

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mozilla firefoxup to 47.0.1 inclusive
  • mozilla firefox45.1.0
  • mozilla firefox45.1.1
  • mozilla firefox45.2.0
  • mozilla firefox45.3.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
SUSE:Linux Enterprise Desktop 12 SP1MozillaFirefoxbefore 45.3.0esr-78.145.3.0esr-78.1
SUSE:Linux Enterprise Server 11 SP2-LTSSfirefox-fontconfigbefore 2.11.0-4.22.11.0-4.2
SUSE:Linux Enterprise Server 11 SP2-LTSSmozilla-nsprbefore 4.12-25.24.12-25.2
SUSE:Linux Enterprise Server 11 SP2-LTSSmozilla-nssbefore 3.21.1-26.23.21.1-26.2
SUSE:Linux Enterprise Server 11 SP2-LTSSMozillaFirefoxbefore 45.3.0esr-48.145.3.0esr-48.1
SUSE:Linux Enterprise Server 11 SP2-LTSSMozillaFirefox-branding-SLEDbefore 45.0-20.3845.0-20.38
SUSE:Linux Enterprise Software Development Kit 11 SP4MozillaFirefoxbefore 45.3.0esr-50.145.3.0esr-50.1
SUSE:Package Hub 12MozillaThunderbirdbefore 45.3.0-9.145.3.0-9.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2016-2067Jul 10, 2016 · drivers/gpu/msm/kgsl.c in the MSM graphics driver (aka GPU driver) for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC)…
    31Monitor
  • ← EarlierCVE-2016-2068Jul 10, 2016 · The MSM QDSP6 audio driver (aka sound driver) for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions…
    31Monitor
  • Later →CVE-2014-9870Aug 6, 2016 · The Linux kernel before 3.11 on ARM platforms, as used in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not properly…
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
suse:firefox-fontconfig2.11.0-4.2 · SUSE:Linux Enterprise Server 11 SP2-LTSSPackage registry (OSV)
suse:mozilla-nspr4.12-25.2 · SUSE:Linux Enterprise Server 11 SP2-LTSSPackage registry (OSV)
suse:mozilla-nss3.21.1-26.2 · SUSE:Linux Enterprise Server 11 SP2-LTSSPackage registry (OSV)
suse:MozillaFirefox45.3.0esr-48.1 · SUSE:Linux Enterprise Server 11 SP2-LTSSPackage registry (OSV)
suse:MozillaFirefox-branding-SLED45.0-20.38 · SUSE:Linux Enterprise Server 11 SP2-LTSSPackage registry (OSV)
suse:MozillaThunderbird45.3.0-9.1 · SUSE:Package Hub 12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records