Minor firmware updates has been certified with the build number 25.0.A.2.29 and 25.0.B.2.29 by PTCRB for the Xperia E4g and Xperia E4g Dual respectively. Xperia E4g will move from the previous build number 25.0.A.2.14 to the new build number 25.0.A.2.29. While Xperia E4g Dual will move from the previous build number 25.0.B.2.14 to the new build number 25.0.B.2.29. As recently Xperia Z3 and Z2 got a fix for the Stagefright exploit we could assume that this minor firmware update will also be the fix for the Stagefright exploit.
Xperia E4g Dual