Background exploitation KEV catalog No authentication

CVE-2018-4990

Adobe Acrobat and Reader Double Free Vulnerability

Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have a Double Free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the…

CheckOps priority index

7.0/10 Patch within 7 days

Severity8.8

Probability3.6

Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 35.9% higher than 98.5% of CVEs

CVSS 3.1 8.8 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:

Exploited for 1,609 days 08 Jun 2022

CISA due date 22 Jun 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)08 Jun 2022
Exploited in EUVD (ENISA)08 Jun 2022
Used by ransomwareno
EPSS above 10 %35.9%
No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Affected products

Adobe Acrobat and Reader 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier versionsAcrobat and Reader

Affected versions

Adobe Acrobat and Reader 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier versions

Weaknesses (CWE)

CWE-415

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

09 Jul 2018
Published
08 Jun 2022
Exploitation reported (ENISA)
08 Jun 2022
Added to the KEV catalog
22 Jun 2022
CISA remediation due date
26 Sept 2026
EPSS peak: 36.2%

References

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