CVE-2015-0071KEV · OVERDUE

Microsoft Internet Explorer ASLR Bypass Vulnerability

Medium · published February 11, 2015

Patch now

The score understates this — it's already being exploited

CVSS calls it medium at 6.5. It is confirmed in active exploitation. It sits in the 98.4th percentile for exploit probability.

1590
days past CISA
deadline
CVSS v3.1
6.5
EPSS
34%
Percentile
98.4
In the wild
Confirmed
What it is

⚠️ This sneaky ASLR bypass in Internet Explorer can let attackers dance right past your defenses — all through just a crafted website! Think of ASLR as a security guard at a party, moving guests to random spots to keep things safe. An attacker can trick that guard into letting them into a special section by presenting a phony reservation — that's how this vulnerability works! This vulnerability could allow a remote attacker to execute malicious code on your system, potentially leading to data breaches or unauthorized access. Even though it’s labeled medium, the consequences could still be quite serious, especially if sensitive information is exposed.

Put simply

Think of ASLR as a security guard at a party, moving guests to random spots to keep things safe. An attacker can trick that guard into letting them into a special section by presenting a phony reservation — that's how this vulnerability works! CVE-2015-0071 allows exploitation of a flaw in Microsoft Internet Explorer's ASLR (Address Space Layout Randomization) protection, enabling remote attackers to bypass this security feature via crafted web content.

What to do

This vulnerability could allow a remote attacker to execute malicious code on your system, potentially leading to data breaches or unauthorized access. Even though it’s labeled medium, the consequences could still be quite serious, especially if sensitive information is exposed. To protect yourself, update Internet Explorer to the latest version, or better yet, consider using a more secure browser. Regularly patch your systems to close this and other vulnerabilities as they arise! You've got this! Keep your systems updated, and you'll stay one step ahead of the attackers! 🛡️

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.33581 · 98.4th percentile
Published
2015-02-11T02:00Z
KEV added
2022-05-25 · due 2022-06-15
EPSS history
Timeline
  • 25 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 15
    kev
  • 11 FEB 02:00Z
    Microsoft Internet Explorer 9 through 11 allows remote attackers to bypass the ASLR protection mechanism via a crafted web site, aka "Internet Explorer ASLR…
    cvelistv5