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Actively exploited vulnerability

Oracle Java SE: vulnerability flaw under attack

CVE-2015-4902 · Oracle Java SE Integrity Check Vulnerability

Concerns everyone who uses it5.3 medium

What is affected

Oracle Java SE is found on ordinary personal computers and phones, so this is not only a problem for companies. If you use it and have not updated since the fix was released, you are exposed.

Unspecified vulnerability in Oracle Java SE allows remote attackers to affect integrity via Unknown vectors related to deployment.

CISA's description

What an attacker can do

This is a vulnerability flaw. It lets an attacker misuse the product in a way its maker did not intend. CISA lists it because attackers are confirmed to be using it against real systems.

How it is reached
Over the internet or network
Access the attacker needs
No account needed
Does the victim have to do something?
No, works without the victim doing anything

What to do

  1. Update Oracle Java SE now. Open the update or "About" screen, install whatever is offered and restart the app or device, because the fix is not active until you do.
  2. Turn on automatic updates so the next fix arrives without you having to look for it.
  3. If your device is too old to receive this update, stop using the affected app for anything sensitive and plan a replacement.

Apply updates per vendor instructions.

Action required by CISA for US federal agencies

How urgent is it

CISA added this vulnerability to its Known Exploited Vulnerabilities catalogue on March 3, 2022, which means there is reliable evidence of attacks in the wild. US federal agencies must fix it by March 24, 2022, a deadline that has already passed. That deadline does not bind anyone else, but it shows how seriously the agency rates it.

The EPSS model estimates a 14% probability that this flaw will be exploited somewhere in the next 30 days. That is higher than 96% of all scored vulnerabilities.

Its CVSS severity score is 5.3 out of 10 (medium), as recorded in the US National Vulnerability Database.

Technical description

Unspecified vulnerability in Oracle Java SE 6u101, 7u85, and 8u60 allows remote attackers to affect integrity via unknown vectors related to Deployment.

NIST National Vulnerability Database
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