CVE-2017-7783

If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example.com"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.

CVSS v3.0

7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

13.53% chance of exploitation in the next 30 days, 96th percentile

Published

2018-06-11

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1360842

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/43020

References

• CVE Record
• NVD entry

Related

• CVE-2017-7781
• CVE-2017-7788
• CVE-2017-7760
• CVE-2017-7800
• CVE-2017-7759
• CVE-2017-7817