Vendor history
mozilla
Cumulative CVEs
3,469
across 205 monthly snapshots
Peak rank
#1
Nov 12
First seen
Jul 00
Latest seen
Jun 26
In CISA KEV
9
last 60 snapshots
Critical
373
last 60 snapshots
With exploits
141
public exploit references
CVEs per month
Newest period on the right. Hover a point for detail · click to open that monthly report.
Sep 16Jun 26
Monthly history
Last 60 months · newest first.
| Period | Rank | Δ | CVEs | Critical | KEV | Nuclei | avg CVSS | Top products |
|---|---|---|---|---|---|---|---|---|
| Jun 26 | #18 | ↑6 | 50 | 8 | · | · | 6.9 | firefox (47) · thunderbird (42) · firefox for ios (4) |
| May 26 | #24 | ↓5 | 44 | 9 | · | · | 8.0 | firefox (43) · thunderbird (37) · firefox esr (4) |
| Apr 26 | #19 | — | 52 | 8 | · | · | 7.6 | firefox (51) · thunderbird (50) · firefox esr (3) |
| Mar 26 | #22 | — | 51 | 21 | · | · | 8.5 | firefox (48) · thunderbird (47) · firefox esr (15) |
| Feb 26 | #9 | — | 54 | 44 | · | · | 9.3 | firefox (54) · thunderbird (51) · firefox for ios (2) |
| Jan 26 | #47 | — | 19 | 4 | · | · | 7.7 | firefox (18) · thunderbird (17) · firefox esr (6) |
| Dec 25 | #50 | — | 17 | 5 | · | · | 8.5 | firefox (16) · thunderbird (13) · firefox esr (10) |
| Nov 25 | #51 | — | 17 | 5 | · | · | 8.2 | firefox (16) · thunderbird (16) · firefox esr (9) |
| Oct 25 | #70 | — | 16 | 7 | · | · | 8.5 | firefox (16) · thunderbird (11) · firefox esr (8) |
| Sep 25 | #57 | — | 15 | · | · | · | 7.1 | firefox (14) · thunderbird (10) · firefox esr (7) |
| Aug 25 | #49 | — | 21 | 6 | · | · | 7.8 | firefox (19) · thunderbird (7) · firefox esr (7) |
| Jul 25 | #63 | — | 17 | 6 | · | · | 8.6 | firefox (17) · thunderbird (16) · firefox esr (14) |
| Jun 25 | #52 | — | 18 | 5 | · | · | 7.5 | firefox (15) · thunderbird (12) · firefox esr (5) |
| May 25 | #46 | — | 20 | 1 | · | · | 6.8 | thunderbird (17) · firefox (15) · firefox esr (11) |
| Apr 25 | #35 | — | 26 | 1 | · | · | 6.9 | thunderbird (24) · firefox (22) · firefox esr (10) |
| Mar 25 | #46 | — | 20 | 3 | · | · | 7.2 | firefox (18) · thunderbird (13) · firefox esr (10) |
| Feb 25 | #55 | — | 14 | 4 | · | · | 8.0 | thunderbird (13) · firefox (12) · thunderbird esr (8) |
| Jan 25 | #53 | — | 14 | 1 | · | · | 5.8 | firefox (13) · thunderbird (9) · firefox esr (8) |
| Nov 24 | #41 | — | 24 | 4 | · | · | 7.3 | firefox (20) · thunderbird (17) · firefox esr (10) |
| Oct 24 | #31 | — | 28 | 5 | 1 | · | 7.4 | firefox (27) · thunderbird (23) · firefox esr (21) |
| Sep 24 | #50 | ↓3 | 14 | 5 | · | · | 8.3 | firefox (12) · thunderbird (9) · firefox esr (9) |
| Aug 24 | #47 | — | 18 | 2 | · | · | 7.9 | firefox (18) · firefox esr (12) · thunderbird (10) |
| Jul 24 | #48 | — | 16 | 2 | · | · | 7.0 | firefox (16) · thunderbird (15) · firefox esr (5) |
| Jun 24 | #36 | — | 18 | 3 | · | · | 6.6 | firefox (18) · firefox esr (8) · thunderbird (8) |
| May 24 | #74 | — | 17 | 2 | · | 1 | 7.2 | firefox (16) · firefox esr (6) · thunderbird (6) |
| Apr 24 | #53 | — | 17 | 1 | · | · | 6.9 | firefox (17) · thunderbird (8) · firefox esr (8) |
| Mar 24 | #48 | — | 16 | 2 | · | · | 7.0 | firefox (15) · firefox esr (11) · thunderbird (11) |
| Feb 24 | #46 | — | 18 | 1 | · | · | 6.8 | firefox (16) · thunderbird (8) · firefox esr (8) |
| Jan 24 | #53 | — | 17 | · | · | · | 6.8 | firefox (15) · thunderbird (10) · firefox esr (10) |
| Dec 23 | #40 | — | 22 | · | · | · | 7.2 | firefox (18) · thunderbird (11) · firefox esr (11) |
| Nov 23 | #57 | — | 12 | 1 | · | · | 7.4 | firefox (12) · firefox esr (7) · thunderbird (7) |
| Oct 23 | #52 | — | 14 | 2 | · | · | 6.3 | firefox (13) · thunderbird (8) · firefox esr (8) |
| Sep 23 | #37 | — | 25 | 5 | 2 | · | 7.5 | firefox (24) · firefox esr (19) · thunderbird (19) |
| Aug 23 | #63 | — | 15 | 3 | · | · | 7.4 | firefox (15) · firefox esr (13) · thunderbird (10) |
| Jul 23 | #50 | — | 17 | · | · | · | 7.8 | firefox (16) · thunderbird (7) · firefox esr (6) |
| Jun 23 | #7 | — | 87 | 8 | · | · | 7.3 | firefox (82) · firefox esr (54) · thunderbird (50) |
| Feb 23 | #93 | — | 7 | 1 | · | 1 | 6.7 | bleach (2) · firefox (2) · mozilla bleach (2) |
| Dec 22 | #4 | — | 175 | 18 | 2 | · | 7.5 | firefox (157) · thunderbird (117) · firefox esr (104) |
| May 22 | #148 | — | 4 | · | · | · | 6.6 | convict (2) · hawk (1) · geckodriver (1) |
| Dec 21 | #23 | — | 28 | 2 | · | 1 | 6.8 | firefox (25) · thunderbird (20) · firefox esr (19) |
| Nov 21 | #39 | — | 14 | · | · | · | 8.1 | firefox (13) · thunderbird (10) · firefox esr (8) |
| Aug 21 | #34 | — | 23 | 3 | · | · | 8.3 | firefox (20) · thunderbird (13) · firefox esr (9) |
| Jun 21 | #22 | — | 39 | 1 | · | · | 6.9 | firefox (30) · thunderbird (19) · firefox esr (12) |
| Feb 21 | #26 | — | 26 | · | · | · | 7.0 | firefox (26) · firefox esr (10) · thunderbird (10) |
| Jan 21 | #36 | — | 14 | 1 | · | · | 7.6 | firefox (14) · firefox esr (8) · thunderbird (8) |
| Dec 20 | #29 | — | 21 | · | · | · | 7.0 | firefox (20) · thunderbird (12) · firefox esr (11) |
| Oct 20 | #24 | — | 28 | 3 | · | · | 7.4 | firefox (22) · thunderbird (10) · firefox esr (9) |
| Aug 20 | #28 | — | 15 | · | · | · | 7.0 | firefox (13) · firefox esr (10) · thunderbird (9) |
| Mar 20 | #27 | — | 25 | 2 | 1 | · | 7.7 | firefox (19) · thunderbird (15) · firefox esr (13) |
| Feb 20 | #88 | — | 4 | · | · | · | 6.8 | webthings gateway (2) · firefox (1) · persona (1) |
| Jan 20 | #16 | — | 37 | 1 | · | · | 7.7 | firefox (37) · firefox esr (22) · thunderbird (18) |
| Sep 19 | #22 | — | 22 | 2 | · | · | 7.0 | firefox (20) · firefox esr (16) · thunderbird (8) |
| Jul 19 | #15 | — | 48 | 15 | 2 | · | 8.0 | firefox (44) · thunderbird (29) · firefox esr (24) |
| May 19 | #144 | — | 2 | · | · | · | 6.1 | firefox esr (2) · network security services (1) · firefox (1) |
| Feb 19 | #12 | — | 34 | 12 | · | · | 8.4 | firefox (34) · firefox esr (17) · thunderbird (15) |
| Oct 18 | #16 | — | 32 | 9 | · | · | 8.1 | firefox (29) · firefox esr (23) · thunderbird (22) |
| Jun 18 | #3 | — | 318 | 110 | 1 | 1 | 8.1 | firefox (309) · firefox esr (153) · thunderbird (152) |
| Dec 17 | #75 | — | 4 | · | · | · | 7.8 | network security services (4) |
| May 17 | #153 | — | 2 | 1 | · | · | 9.4 | network security services (2) · thunderbird (1) · firefox esr (1) |
| Sep 16 | #14 | — | 20 | 8 | · | · | 8.5 | firefox (20) · firefox esr (3) · thunderbird (3) |