CVE-2018-20066
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote...
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
CVE-2018-20066- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-416
- Updated
- 2026-11-02
CVE List No score
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
CVE-2018-20066- Updated
- 2026-11-02
EUVDEUVD-2018-12641 No score
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
EUVD-2018-12641- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4r75-3cj5-x52w
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote...
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
GHSA-4r75-3cj5-x52w- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
OSV
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
CVE-2018-20066- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-20066
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
DEBIAN-CVE-2018-20066- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-20066
Incorrect object lifecycle in Extensions in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Record
UBUNTU-CVE-2018-20066- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
chromiumDebian:12 |
before 71.0.3578.80-1 | 71.0.3578.80-1 |
chromiumDebian:13 |
before 71.0.3578.80-1 | 71.0.3578.80-1 |
chromiumDebian:14 |
before 71.0.3578.80-1 | 71.0.3578.80-1 |
chromium-browserDebian:9 From an advisory covering 33 CVEs |
before 71.0.3578.80-1~deb9u1, plus listed versions 59.0.3071.104-159.0.3071.86-160.0.3112.72-160.0.3112.78-160.0.3112.78-1~deb9u1 Show 45 moreShow less61.0.3163.100-161.0.3163.100-1~deb9u161.0.3163.100-262.0.3202.75-162.0.3202.75-1~deb9u162.0.3202.89-162.0.3202.89-1~deb9u163.0.3239.30-163.0.3239.40-163.0.3239.84-163.0.3239.84-1~deb9u164.0.3282.119-164.0.3282.119-1~deb9u164.0.3282.119-265.0.3325.146-165.0.3325.146-265.0.3325.146-365.0.3325.146-465.0.3325.73-165.0.3325.74-166.0.3359.117-166.0.3359.117-1~deb9u166.0.3359.139-166.0.3359.181-166.0.3359.22-166.0.3359.22-266.0.3359.22-366.0.3359.26-166.0.3359.26-267.0.3396.48-167.0.3396.56-167.0.3396.57-167.0.3396.62-167.0.3396.62-267.0.3396.79-167.0.3396.79-267.0.3396.87-167.0.3396.87-1~deb9u168.0.3440.17-168.0.3440.25-168.0.3440.33-168.0.3440.42-168.0.3440.7-168.0.3440.75-168.0.3440.75-1~deb9u1 |
71.0.3578.80-1~deb9u1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-20066 is a high vulnerability (CVSS 8.8) in Google Chrome, published December 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 48th percentile. Fixed in chromium 71.0.3578.80-1.
References
Left out here: 19 versions. The JSON record has them.