Background exploitation KEV catalog
CVE-2010-2883

Adobe Acrobat and Reader Stack-Based Buffer Overflow Vulnerability

Stack-based buffer overflow in CoolType.dll in Adobe Reader and Acrobat 9.x before 9.4, and 8.x before 8.2.5 on Windows and Mac OS X, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a…

CheckOps priority index
7.2/10 Patch within 7 days
Severity7.3
Probability8.1
Exploitation3/5

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

EPSS · today 81.4% higher than 99.6% of CVEs
CVSS 3.1 7.3 AV:L/AC:L/PR:L/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

05010026 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

  • KEV catalog (CISA)08 Jun 2022
  • Exploited in EUVD (ENISA)08 Jun 2022
  • Used by ransomwareno
  • EPSS above 10 %81.4%
  • No account, over the networkno

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

Stack-based buffer overflow in CoolType.dll in Adobe Reader and Acrobat 9.x before 9.4, and 8.x before 8.2.5 on Windows and Mac OS X, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a PDF document with a long field in a Smart INdependent Glyphlets (SING) table in a TTF font, as exploited in the wild in September 2010. NOTE: some of these details are obtained from third party information.

Affected products

Acrobat and Reader
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 81.4%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2026-48356Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability
    7.5 · Rising fast
  • CVE-2026-71362Adobe Commerce and Magento Incorrect Authorization Vulnerability
    8.8 · Actively exploited
  • CVE-2026-75650Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability
    5.9 · Actively exploited
  • CVE-2026-48282Adobe ColdFusion Path Traversal Vulnerability
    7.7 · Actively exploited
  • CVE-2009-3459Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability
    8.5 · Actively exploited
  • CVE-2026-34621Adobe Acrobat and Reader Prototype Pollution Vulnerability
    4.9 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities