CVE Tools

CVE-2019-7761

Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.

Published Updated Sources: CVE.org, NVD, BDU

What to do

The vendor has published a fix. Version details are below where the sources state them.

  • Adobe Acrobat and ReaderAffected: 2019.010.20100 and earlier, 2019.010.20099 and earlier, 2017.011.30140 and…Upgrade to: not statedStated by: CVE record
  • Adobe Acrobat DcAffected: ≥ 15.006.30060, ≤ 15.006.30495Upgrade to: after 15.006.30495Affected: ≥ 15.006.30060, ≤ 15.006.30493Upgrade to: after 15.006.30493Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

Steps

Written by AI from the record
  1. Check which Adobe Acrobat or Acrobat Reader version you have installed (Help → About).
  2. If your version is one of the listed “and earlier” versions, plan an immediate update.
  3. Update Adobe Acrobat/Reader to the fixed version(s) provided by Adobe in APSB19-18.
  4. After updating, confirm the new version number appears in Help → About and that document opening works as expected.

What it is

From the CVE record

Adobe Acrobat and Reader versions 2019.010.20100 and earlier, 2019.010.20099 and earlier, 2017.011.30140 and earlier, 2017.011.30138 and earlier, 2015.006.30495 and earlier, and 2015.006.30493 and earlier have a use after free vulnerability. Successful exploitation could lead to arbitrary code execution.

In plain language

Written by AI from the record

CVE-2019-7761 is a serious security bug in older Adobe Acrobat/Acrobat Reader versions that can let an attacker run code when you open a crafted file; if you use these versions, you should update soon.

CVE-2019-7761 is a use-after-free vulnerability in affected Adobe Acrobat and Reader releases; it is triggered by opening a specially crafted document and can lead to arbitrary code execution (public exploit code exists).

If you're affected

  • Full system compromise
  • Malware installation risk
  • Ransomware risk
  • Business disruption

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS96th
Public exploit
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

10% chance of exploitation activity in the next 30 days, which ranks it in the 96th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

The patch came 471 days before any public exploit.

  1. EPSS band change0 → moderateepss band change
  2. EPSS band changemoderate → 0epss band change
  3. EPSS band change0 → moderateepss band change
  4. EPSS band changemoderate → 0epss band change
  5. EPSS band change0 → moderateepss band change
  6. EPSS band changemoderate → 0epss band change

Affected products

Technical detail

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

Scored 8.8 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for Adobe, not every advisory. This one: public exploit.